Yes, AT&T works in Italy. International Day Pass auto-activates and gives you talk, text, and data at USD$12 per day on Italy’s TIM (Telecom Italia Mobile) or Vodafone networks. For a typical 10-day Rome–Florence–Venice trip that’s USD$120 just for connectivity. An eSIM for the same trip costs around USD$9.02. Honest math + when Day Pass is genuinely the right call below.
Travelren is an eSIM brand and we sell Italy plans. We’ve put real numbers and the cases where keeping AT&T’s Day Pass on is the better choice — they exist.
10 days of data: AT&T International Day Pass vs a Travelren eSIM (USD, 2026).
The quick answer
AT&T International Day Pass in Italy: USD$12/day (USD$10/day with the AT&T Unlimited Premium plan), only on usage days. Routes on TIM or Vodafone Italy.
Travelren eSIM, 5GB / 30 days: approximately USD$9.02
Crossover: the eSIM is cheaper for any trip 1 day or longer.
How AT&T actually works when you land in Italy
Italy has three main mobile carriers: TIM, Vodafone Italia, and WindTre. AT&T’s roaming agreements route to TIM as primary, with Vodafone as fallback. Both have strong coverage in Rome, Florence, Venice, Milan, Naples — basically everywhere a tourist goes. 5G is solid in city centres; 4G LTE everywhere else including the Cinque Terre, Amalfi coast, and Tuscan countryside. Speeds in cities typically 50-150 Mbps on 5G.
Day Pass triggers on first use. AT&T sends an SMS confirming the charge. Days you don’t use the network aren’t billed — but background email syncs, WhatsApp pushes, and iMessage notifications count as activation. Disable cellular data on landing if you want quiet days.
International Day Pass pricing for Italy
USD$12 per 24-hour usage window from first activation
USD$10/day for AT&T Unlimited Premium customers (your existing premium plan rate)
Talk + text + your home data allowance included on activation days
Verify your specific plan’s roaming rate on myAT&T
What an eSIM costs for the same Italy trip
Travelren Italy plans (USD as of May 2026):
1GB / 7 days: approximately USD$2.77 — light navigation + WhatsApp on a short city break
3GB / 30 days: approximately USD$5.90 — 1-2 weeks normal usage
5GB / 30 days: approximately USD$9.02 — Italy circuit with daily Reels / FaceTime home
10GB / 30 days: approximately USD$14.22 — heavy use, daily video calls, tethered laptop work
Europe regional 5GB / 30 days: approximately USD$15 — covers Italy + 30+ other European countries (handy if your trip includes France, Switzerland, Germany etc.)
The single most useful tip in this article: if your trip is Italy plus any other European country (France, Switzerland, Germany, Spain, Greece…), buy a Europe regional eSIM, not a country-specific Italy one. Travelren’s Europe 5GB / 30 days at USD$15 covers 30+ countries with one eSIM and one plan. You don’t need to swap eSIMs at the border.
This is also where Airalo’s Eurolink regional plan is genuinely competitive — for multi-country Europe trips Airalo and Travelren are both good options at similar prices. The Italy-only single-country option only makes sense if Italy is your only destination.
When AT&T International Day Pass is actually the right call
You’re transiting through FCO or MXP for under 6 hours — eSIM setup time isn’t worth USD$2.98 saved
You can’t have your US number go SMS-silent on data days — bank 2FA, doctor calls. Modern dual-SIM phones solve this; older single-SIM phones don’t
Corporate AT&T plan with Day Pass comped — common for business travellers
You hate phone settings and Day Pass auto-activates
Will your phone work?
Almost certainly yes. iPhone XS+ (2018+), Pixel 3+, Galaxy S20+ all support eSIM. iPhone 14+ (2022+, all US iPhones) are eSIM-only. AT&T-locked phones unlock automatically once paid off.
Exception: iPhones bought directly in mainland China don’t have eSIM hardware. Our device check page has the full lookup.
Common questions
Can’t I buy a SIM at FCO or MXP?
You can — TIM, Vodafone, and WindTre all have airport kiosks. Italy requires passport for SIM activation under EU regulation, which adds time. Tourist SIMs run EUR 20-40 (USD$22-45) for 30-day packages. The eSIM at USD$9.02 is cheaper and you don’t queue at the airport.
Will I have signal in the Cinque Terre / Amalfi / Tuscan hill towns?
Yes in towns and along train routes. Coverage drops in parts of the Cinque Terre coastal walks and remote rural Tuscany — but you’ll have signal at every train station, restaurant, and most trail viewpoints. Download offline Google Maps for hikes.
Do trains have signal between cities?
Mostly yes on the Frecciarossa high-speed lines (Rome–Florence–Milan). Tunnels drop signal briefly. Slower regional trains have more variable coverage but you’re rarely offline for more than 5 minutes.
Will iMessage and WhatsApp keep working?
Yes. Both are tied to your Apple ID / phone number registration, not the carrier. As long as you have data (any source), they work on your usual US number.
The bottom line
For any Italy trip an eSIM is significantly cheaper than AT&T International Day Pass. A 10-day Italy trip: USD$9.02 with Travelren versus USD$120 with Day Pass. If your trip extends to other European countries, the Europe regional eSIM is the way — covers 30+ countries on one plan.
You’ve probably seen the same three names pop up every time you search for a travel eSIM: Airalo, Holafly, and Travelren. They all work. They all make different trade-offs. And the marketing from all three insists they’re the cheapest and fastest, which can’t all be true at once.
This is a straight comparison for American travelers: real USD pricing, which carriers each brand uses in the countries you’re most likely to fly to, and when each option actually makes sense. We’ll use Opensignal’s public network data rather than our own claims, and we’ll list our own prices alongside competitors so you can draw your own conclusions.
Travelren owns the margin spreadsheet that compares us to our competitors. Our team would rather tell you when Airalo or Holafly is the better fit for your trip than oversell you on us, because the alternative — you buying the wrong eSIM and never coming back — costs more in the long run.
The quick answer, before you scroll
Short version: for a week in Tokyo using roughly 5GB, you’ll spend around $8 with Travelren, $8.50 with Airalo, or $37 with Holafly for ten days of unlimited. For a week in Bangkok: around $6 with Travelren, $6.50 with Airalo, and $22 with Holafly. For a week in Mexico: roughly $7 with Travelren, $8 with Airalo, and $37 with Holafly unlimited.
Travelren and Airalo are close to price parity on most destinations. Holafly runs 3 to 4 times more expensive because they only sell unlimited plans. The real differences show up in data structure, support quality, and what happens when something doesn’t work — not in the headline price.
Prices in USD, retail (no first-buyer discounts). Last verified April 2026.
How we actually compared them
We pulled the current public price for a comparable plan on each provider in April 2026 — around 3GB over 30 days, or the unlimited equivalent for Holafly. Prices are retail, not first-time-buyer-discounted, since those codes expire and you can’t count on them for your next trip.
Carrier routing comes from Airalo’s network disclosures, Holafly’s public plan pages, and our own supply partner confirmations. Network performance data comes from Opensignal’s country mobile network experience reports — free, methodical, the industry benchmark for measured rather than advertised speeds.
Japan: the bucket list trip
Japan is the highest-volume eSIM search from US IPs after Mexico. Here’s the breakdown on a typical plan size.
Japan — 3GB over 30 days
Travelren: $8, routes on SoftBank and KDDI 5G
Airalo “Moshi Moshi”: approximately $8.50, routes on SoftBank and KDDI
Holafly: no 3GB option — their smallest is 10 days unlimited at around $37
Opensignal’s April 2025 Japan Mobile Network Experience report awarded NTT Docomo the 5G download speed crown at 168 Mbps, with SoftBank winning on 5G availability. For most visitors in Tokyo, Osaka, or Kyoto, you’ll pull above 100 Mbps on either SoftBank or Docomo — the practical difference is zero. The gap matters more for rural Hokkaido or the Japanese Alps, where NTT Docomo’s deeper infrastructure wins. No consumer eSIM brand routes on Docomo-primary, so if you’re doing serious rural Japan travel, plan around that limitation.
The honest recommendation for Americans: AT&T’s International Day Pass is $12/day for Japan, meaning a 7-day trip costs $84 in roaming. That’s 10x any of the eSIM options. Skip roaming entirely. For urban Japan trips, Travelren and Airalo are interchangeable — pick whichever app you prefer. For heavy data users on longer trips, Holafly’s 10-day unlimited at $37 stops looking crazy. See the full Travelren Japan plan range from 1GB through 20GB.
Mexico: the easy weekend trip
Mexico is the single biggest outbound destination for US travelers by volume. The eSIM math here is weirder than you’d think because T-Mobile customers already get free data in Mexico and Canada on most plans. If you’re on T-Mobile Magenta or Go5G, you may not need any eSIM at all — check your plan before you buy.
Mexico — 3GB over 30 days
Travelren: approximately $7, routes on Telcel
Airalo “Tec Mexico”: approximately $8, routes on Telcel and AT&T Mexico
Holafly: 10 days unlimited at around $37
Telcel has the broadest Mexico coverage including most of Yucatán, Baja California, and the Pacific coast resort strip. AT&T Mexico is strong in northern states and major cities but thinner in rural and resort areas. Opensignal’s Mexico reports put Telcel comfortably ahead on 4G availability and rural reach.
The honest recommendation: T-Mobile customers should check their plan first — international data in Mexico may already be included. Verizon and AT&T customers pay $12/day on International Day Pass, making even a 4-day trip to Cancun cheaper on eSIM. Travelren and Airalo are close on price with Telcel primary on both.
Thailand: the longer trip
Thailand is the cheapest country across every eSIM provider and the destination where data-capped plans genuinely shine.
Thailand — 3GB over 30 days
Travelren: $6, routes on AIS 5G
Airalo “Vapor”: approximately $6.50, routes on AIS and True Corp
Holafly: 10 days unlimited at around $22
AIS dominates Thailand network rankings on Opensignal’s Thailand reports — leading 5G availability, leading rural reach, and strong in the tourist regions of Phuket, Krabi, and Koh Samui. True Corp is competitive in Bangkok but loses ground outside the capital. Both Travelren and Airalo route AIS-primary, which means network experience is effectively identical.
The honest recommendation: AT&T Day Pass is $12/day to Thailand — a 14-day trip costs $168 in pure roaming. For any Thailand trip over three days, an eSIM is dramatically cheaper. Travelren is marginally cheaper than Airalo at every tier. Holafly is only worth it for true digital nomad use (30+ days, heavy daily data).
Europe: where regional plans win
Most US travelers heading to Europe visit multiple countries — London plus Paris plus Rome, or the full Mediterranean loop. For those trips, a country-by-country eSIM is a bad idea. Regional plans change the math entirely.
Europe regional — 5GB over 30 days, 25+ country coverage
Travelren regional: approximately $16
Airalo “Eurolink”: approximately $14, category leader for multi-country Europe
Holafly regional Europe: 10 days unlimited at approximately $34
Regional plans route across each country’s partner carriers — Vodafone in Germany, Orange in France, TIM in Italy, EE in the UK, Movistar in Spain. Opensignal ranks Vodafone and Orange highly for 5G in their respective countries, and regional plans generally inherit that performance.
The honest recommendation: Airalo’s Eurolink is the category leader for multi-country Europe and the one we’d recommend over our own regional plan. Travelren is competitive on country-specific plans (UK-only, Italy-only); Airalo has scale advantages on regional roaming agreements that we haven’t matched yet.
Airalo “Uki”: approximately $8, routes on EE and Three
Holafly: 10 days unlimited at around $37
Airalo has a slight price edge on UK-only plans. Network experience is identical — both route EE primary, and EE leads Opensignal’s UK 5G rankings consistently. If your trip is London and a day trip to Edinburgh, Airalo wins by a dollar. If you’re adding Paris, switch to Eurolink regional.
What matters beyond the headline price
Prices change. Today’s $2 advantage can vanish in a month when a provider runs a promotion. The durable differences are structural.
Fixed data vs unlimited
Travelren and Airalo sell fixed-data plans. You buy 3GB, 10GB, or 20GB and that’s your budget. If you run out, top up or finish the trip on WiFi. Holafly only sells unlimited — pay more upfront, don’t think about data. For content creators, remote workers, and anyone navigating with Google Maps all day while also video-calling home, Holafly’s model removes a small but real source of trip anxiety.
The catch: Holafly’s “unlimited” throttles above roughly 90GB per month and caps hotspot tethering at 500MB per day. Before you assume unlimited means tethering a laptop for a week of remote work, read the fine print.
Customer support
Hard to benchmark fairly when we run one of the three companies, so we’ll report what forum consensus says. Holafly’s 24/7 WhatsApp support is the strongest of the three for real-time issues — they deliver on it. Airalo has in-app chat with response times that vary by time zone. Travelren answers email within US business hours (we’re based in Sydney, so morning US = evening AU and vice versa, which works out well for turnaround). For complex activation issues Holafly wins. For simple questions any of them are fine.
What happens when the primary network drops
All three brands let your phone pick the strongest signal from partner networks automatically. You can’t manually switch. If the primary network has an outage in your area, all three fail identically. Your home SIM staying active as a secondary line for calls and SMS is the real insurance, not the eSIM brand you choose.
A clear recommendation matrix for Americans
First-time travel eSIM, short trip to Asia or Mexico: Travelren or Airalo. Flip a coin — prices are within a dollar and carriers are the same.
Multi-country Europe trip: Airalo Eurolink. Category leader, honestly better than what we offer.
Month-long trip, heavy data use, hate topping up: Holafly. Pricier but the only one that makes unlimited practical.
Mexico short trip and you’re on T-Mobile: check your plan first. You may not need an eSIM at all.
Thailand or Japan trip longer than a week: skip AT&T/Verizon Day Pass ($12/day) — eSIM is roughly 90% cheaper.
Long stay, heavy data, value per GB above all else: buy a physical local SIM on arrival. Cheaper per GB but costs time and sometimes passport registration. Only worth it beyond three weeks.
What we’re not trying to change your mind about
If you’ve used Airalo four times and their app is muscle memory, a $1 price difference isn’t worth the switching cost. If Holafly burned you once, trust that. If Travelren is new to you, test us on a short trip before committing to a big one. That’s sensible behavior.
What we do want you to do: pick one, install it before you fly, and test it works on your phone at home before you’re fighting airport WiFi. All three brands support installation days or weeks before activation. Don’t leave it to the jetway.
Before anything: confirm your phone supports eSIM
Every comparison assumes your phone can run an eSIM. Most iPhones from the XS onwards (US models are all eSIM-only since iPhone 14), every recent Google Pixel, and most flagship Samsung Galaxy devices work. The main exception is iPhones originally sold in mainland China, which lack the eSIM hardware even though the model number looks identical to a US unit. If you’re unsure, our device check tool confirms in 30 seconds, works for every eSIM brand.
Frequently asked questions
Is Travelren cheaper than Airalo for US travelers?
On most destinations Travelren and Airalo are within a dollar of each other in USD. Travelren is meaningfully cheaper on US-domestic plans (about 20% below Airalo for travelers visiting the US from abroad) and on Mexico plans. Airalo edges Travelren by about $1 on UK-only and Eurolink regional. For Japan, Thailand, and most other destinations, the prices are close enough that interface preference matters more than the headline.
Is an eSIM cheaper than AT&T or Verizon International Day Pass?
Almost always yes. AT&T’s International Day Pass is $12/day in most countries; Verizon’s TravelPass is $10/day. A 7-day trip costs $70–84 in roaming. The same week on a Travelren or Airalo eSIM costs $6–14 total. The exception is T-Mobile’s free Mexico/Canada data on Magenta and Go5G plans — if you’re on those, you don’t need an eSIM for trans-border trips.
Will an Airalo, Holafly, or Travelren eSIM work on my US iPhone?
Yes — every iPhone sold in the US from the iPhone 14 onwards is eSIM-only and supports any travel eSIM brand. iPhone XS through 13 also support eSIM but allow physical SIM swaps too. The exception is iPhones originally bought in mainland China, which lack the eSIM hardware. Our device check tool confirms in 30 seconds.
Can I keep my regular phone number active while using a travel eSIM?
Yes — that’s the whole point of dual-SIM. Keep your US number active for calls and SMS (banks, two-factor auth, family contact) and route data through the travel eSIM. Turn data roaming off on your home line in Settings before you fly so you don’t accidentally rack up charges.
What happens if my eSIM data runs out mid-trip?
Top up from inside the brand’s app — usually under a minute, the new allowance activates immediately. Travelren, Airalo, and Holafly all support in-app top-ups. The trade-off with fixed-data plans (Travelren and Airalo) is you have to remember to do it; Holafly’s unlimited plans skip this entirely but cost 3–4x more upfront.
The final take
Travel eSIMs have matured fast. Five years ago the honest advice was “figure it out when you land.” Today Travelren, Airalo, and Holafly all ship products that work reliably from the jet bridge onward. The decision isn’t whether to use an eSIM — it’s which one fits your trip.
For most Americans on most trips, Travelren and Airalo are close to indistinguishable on price and carrier routing. Holafly is the premium option: pay more, worry less. Physical local SIMs stay the cheapest per GB but cost time and flexibility. AT&T and Verizon International Day Passes at $12 are categorically worse than any eSIM option for trips longer than a few days — the only exception is very short trips where the simplicity of not installing anything wins.
Whichever you pick, install it at home, keep your home SIM active as a secondary line, and verify your phone supports eSIM before assuming it does. That’s the 90% that matters.
Last updated: April 2026. Prices verified against each provider’s public pages at time of writing. Carrier information sourced from Opensignal country reports and provider network disclosures. We update this article quarterly as prices and carrier routing change.
Search for a travel eSIM and three names come up every time: Airalo, Holafly, and Travelren. All three work. All three make different trade-offs. And every one of them tells you they’re the cheapest and fastest, which they obviously can’t all be.
This is an honest comparison for New Zealand travellers: real prices in NZD, which carriers each brand routes through in the countries you’re actually flying to, and when each one is genuinely the right pick. We’ll lean on Opensignal’s public data rather than marketing claims, and we’ll list our own prices beside the competition so you can choose for yourself.
Travelren keeps the spreadsheet that compares our margins to competitors. Our team would rather tell you Airalo or Holafly fits your trip better than oversell you on us, because the cost of you buying the wrong eSIM and not coming back outweighs today’s sale.
The quick answer, before you scroll
Short version: a week in Tokyo using about 5GB costs roughly NZ$13 with Travelren, NZ$14 with Airalo, or NZ$60 with Holafly for ten days of unlimited. A week in Bangkok: around NZ$10 with Travelren, NZ$11 with Airalo, NZ$36 with Holafly. A week in the USA: roughly NZ$15 with Travelren, NZ$19 with Airalo, NZ$60 with Holafly.
Travelren and Airalo are close to price parity on most destinations. Holafly runs 3 to 4 times more expensive because they sell unlimited only. The durable differences are in data structure, support quality, and trip fit — not the headline price.
Prices in NZD, retail (no first-buyer discounts). USD converted at 1.67. Last verified April 2026.
How we actually compared them
We pulled current retail pricing on each provider in April 2026 — around 3GB over 30 days, or the unlimited equivalent for Holafly. USD converted to NZD at 1.67. Prices are retail, not first-buyer-discount prices, because those expire and you can’t count on them for your next trip.
Carrier routing is from Airalo’s network disclosures, Holafly’s plan pages, and our own supplier confirmations. Network speed data comes from Opensignal country reports — free, independent, industry benchmark for measured (not advertised) speeds.
Australia: the trans-Tasman trip
Australia is the most common outbound destination for Kiwi travellers. Here’s how the three brands compare for a short trans-Tasman trip.
Australia — 3GB over 30 days
Travelren: approximately NZ$9, routes on Telstra or Optus
Airalo “Yes”: approximately NZ$10, routes on Telstra and Optus
Holafly: 10 days unlimited at roughly NZ$45
Spark’s 14-day Roaming Pack is NZ$30 and covers Australia — for a 2-week trip across the ditch, Spark roaming is price-competitive with eSIMs because it works out to about NZ$2.14 per day and keeps your home number live. One NZ charges NZ$10 per day for Australia roaming, which is categorically worse than any eSIM for any trip longer than a weekend.
Telstra leads Opensignal’s Australia rankings on 5G availability. Both Travelren and Airalo route Telstra or Optus primary. Network experience on a week in Sydney or Melbourne is effectively identical.
The honest recommendation: Spark customers on the Roaming Pack can stay on their home plan for Australia trips up to 14 days — simpler and price-competitive. One NZ customers save meaningful money by switching to an eSIM for any trip over two days. Travelren and Airalo are interchangeable on price and carriers.
Japan: the big bucket list trip
Japan is the second biggest destination for Kiwi travellers after Australia, and the trip where eSIM economics genuinely matter.
Japan — 3GB over 30 days
Travelren: NZ$13, routes on SoftBank and KDDI 5G
Airalo “Moshi Moshi”: approximately NZ$14, routes on SoftBank and KDDI
Holafly: no 3GB plan, 10 days unlimited at around NZ$60
Opensignal’s April 2025 Japan Mobile Network Experience report gave NTT Docomo the 5G download speed award at 168 Mbps, with SoftBank winning 5G availability. In Tokyo, Osaka, or Kyoto you’ll pull above 100 Mbps on either — the practical difference is invisible. The gap matters for rural Hokkaido or the Japan Alps, where Docomo’s deeper network wins. No consumer eSIM routes on Docomo-primary, so that limitation applies to all three.
Spark’s Roaming Pack covers Japan too — NZ$30 for 2GB over 14 days, or NZ$2.14 per day equivalent. For a 2-week Japan trip, Spark roaming costs NZ$30 and gets you a modest data allowance. Travelren at NZ$13 gets you 3GB for 30 days. The eSIM is roughly 60% cheaper and gives you more data. One NZ at NZ$10 per day is categorically worse for any Japan trip longer than a weekend.
The honest recommendation: for any Japan trip longer than four days, skip roaming entirely. Travelren and Airalo are price-parity. Holafly’s 10-day unlimited at NZ$60 is only sensible if you’re hitting very heavy daily data use.
USA: where the savings pull clear
The United States is where eSIMs become an obvious financial win. Spark’s Roaming Pack covers the US but NZ$30 for 2GB over 14 days is tight for an actual US trip. One NZ at NZ$10 per day adds up fast.
USA — 3GB over 30 days
Travelren: NZ$15, routes on T-Mobile and Verizon 5G
Airalo “Change”: approximately NZ$19, routes on T-Mobile and Verizon
Holafly: 10 days unlimited at approximately NZ$60
T-Mobile is primary on both Travelren and Airalo’s US plans. Opensignal’s US reports have consistently placed T-Mobile first for 5G availability and rural reach, with Verizon edging ahead on peak urban speeds. For the standard NZ-to-US itinerary (LA, Vegas, San Francisco, a national park) T-Mobile primary is a genuine plus.
The honest recommendation: for any US trip, skip roaming. Spark Roaming Pack’s 2GB ceiling runs out fast when you’re streaming on flights, uploading photos, and using Uber. Travelren is about 20% cheaper than Airalo on US plans — meaningful if you’re doing a two-week trip with multiple top-ups.
Thailand: the cheapest destination
Thailand is cheap across every eSIM provider. It’s also Spark-friendly for short trips — NZ$30 for the 14-day Roaming Pack covers it.
Thailand — 3GB over 30 days
Travelren: NZ$10, routes on AIS 5G
Airalo “Vapor”: approximately NZ$11, routes on AIS and True Corp
Holafly: 10 days unlimited at approximately NZ$36
AIS dominates Opensignal’s Thailand rankings for 5G availability and rural reach. Both Travelren and Airalo route AIS-primary. Network experience is effectively identical.
The honest recommendation: for a week or more in Thailand, an eSIM is significantly cheaper than Spark’s Roaming Pack and gives you more data. For a weekend trip to Bangkok, Spark’s pack is close enough to be worth not bothering with an install. Travelren and Airalo are indistinguishable for Thailand trips.
Europe: where regional plans matter
Most Kiwi trips to Europe cover multiple countries — UK, France, Italy, Spain, Germany. A country-specific eSIM is usually the wrong choice.
Europe regional — 5GB over 30 days, 25+ country coverage
Travelren regional: approximately NZ$27
Airalo “Eurolink”: approximately NZ$23, category leader for multi-country Europe
Holafly regional Europe: 10 days unlimited at roughly NZ$57
The honest recommendation: Airalo’s Eurolink is the strongest regional option for multi-country Europe — honestly better than what Travelren offers. For a UK-only trip, Travelren is competitive at around NZ$15 for 3GB. For anything beyond the UK, switch to Eurolink.
What matters beyond the headline price
Prices change. A NZ$3 advantage today can flip in a month. The durable differences between the three brands are structural.
Fixed data vs unlimited
Travelren and Airalo sell fixed-data plans. Buy 3GB, 10GB, or 20GB and that’s your budget — top up or finish on WiFi if you run out. Holafly sells unlimited only: pay more upfront, stop thinking about data. For remote workers, content creators, and anyone using Google Maps all day while also video-calling home, Holafly removes a small but real source of trip anxiety.
Worth knowing: Holafly’s “unlimited” throttles above 90GB per month and caps hotspot at 500MB per day. Read the fine print before assuming it means tethering a laptop for a week of remote work.
Customer support
Hard to benchmark fairly from inside one of the brands, so here’s forum consensus: Holafly’s 24/7 WhatsApp support is the strongest for real-time issues. Airalo runs in-app chat with variable response times depending on time zone. Travelren responds via email — we’re based in Sydney, two hours ahead of NZ, so most support emails get a same-day reply during NZ business hours. For urgent activation issues Holafly wins. For most questions any of them are fine.
When the primary network drops
None of the three lets you manually switch carriers inside a plan — your phone picks the strongest signal from partner networks automatically. If the primary has an outage locally, all three fail the same way. Keeping your home SIM active as a secondary line is the real insurance, not the eSIM brand you choose.
A clear recommendation matrix for Kiwis
Weekend trip to Australia: Spark Roaming Pack at NZ$30 for 14 days is simpler than installing an eSIM. One NZ customers should switch to eSIM.
First travel eSIM, Japan or Thailand: Travelren or Airalo. Flip a coin — prices are within a dollar.
US trip longer than a week: Travelren. About 20% cheaper than Airalo and T-Mobile primary.
Multi-country Europe trip: Airalo Eurolink. Category leader, honestly better than our regional offering.
Month-long trip, heavy data use, hate topping up: Holafly. The only brand that makes unlimited practical.
Digital nomad staying longer than three weeks in one country: physical local SIM on arrival. Cheapest per GB, costs time.
What we’re not trying to change your mind about
If you’ve used Airalo three times and their app is muscle memory, a NZ$2 difference isn’t worth the switching cost. If Holafly let you down, trust that. If Travelren is new to you, try us on a short trip before committing to a big one. That’s the sensible play.
What we do want you to do: pick one, install before you fly, and verify it works at home rather than fighting airport WiFi. All three brands support installation days or weeks before activation. Don’t leave it to the jetway.
Before anything: confirm your phone supports eSIM
Every comparison assumes your phone can run an eSIM. Most iPhones from the XS onwards, every recent Google Pixel, and most flagship Samsung Galaxy devices work. The main exception is iPhones bought in mainland China, which lack the eSIM hardware even when the model number matches an NZ unit. If you’re unsure, our device check tool confirms in 30 seconds. Works for every eSIM brand, not just ours.
Frequently asked questions
Is Travelren cheaper than Airalo for Kiwi travellers?
On most destinations Travelren and Airalo are within a dollar or two of each other in NZD. The exception is the USA, where Travelren is about 20% cheaper at retail. Airalo’s Eurolink regional plan is slightly cheaper than Travelren’s for multi-country Europe trips. For Japan, Thailand, and Australia the prices are close enough that interface preference matters more than the headline.
Should I use Spark Roaming Pack or buy a travel eSIM?
Spark’s Roaming Pack at NZ$30 for 14 days and 2GB is genuinely competitive for short trans-Tasman trips and weekend visits to Asia. For trips longer than two weeks, anywhere with heavy data use (streaming, uploading photos, Uber), or to the USA, an eSIM gives you significantly more data for similar money. One NZ customers paying NZ$10/day for roaming should switch to an eSIM for almost any trip over two days.
Will an Airalo, Holafly, or Travelren eSIM work on my iPhone bought in NZ?
Yes. Every iPhone from XS (2018) onwards sold in New Zealand supports eSIM. The exception is iPhones originally bought in mainland China, which lack the eSIM hardware even when the model number matches. Our device check tool confirms in 30 seconds — works for any eSIM brand, not just ours.
Can I keep my NZ number active while using a travel eSIM?
Yes — that’s the whole point of dual-SIM phones. Keep your NZ SIM active for calls and SMS (banks, two-factor auth, family contact) and route data through the travel eSIM. Turn data roaming off on the NZ line in Settings before you fly so you don’t accidentally rack up charges from your home carrier.
What happens if my eSIM data runs out mid-trip?
Top up from inside the brand’s app — usually under a minute, the new allowance activates immediately. Travelren, Airalo, and Holafly all support in-app top-ups. The trade-off with fixed-data plans is you have to remember to do it; Holafly’s unlimited skips this entirely but costs 3–4x more upfront.
The final take
Travel eSIMs have matured fast. Five years ago the honest advice was “figure it out on arrival.” Today Travelren, Airalo, and Holafly all ship products that work reliably from the jet bridge onward. The real question is which one fits your specific trip.
For most Kiwi travellers on most trips, Travelren and Airalo are close to indistinguishable. Holafly is the premium option: pay more, worry less. Physical local SIMs remain the cheapest per GB for long stays. And for short trans-Tasman or Pacific trips, Spark’s Roaming Pack can be simpler and comparable on price.
Whichever you pick, install at home, keep your home SIM active as a secondary line, and check your phone supports eSIM before assuming it does. That’s 90% of what matters.
Last updated: April 2026. Prices verified against each provider’s public pages at time of writing. Carrier information sourced from Opensignal country reports and provider network disclosures. We update this article quarterly as prices and carrier routing change.
Search for a travel eSIM and you’ll see the same three names on repeat: Airalo, Holafly, and Travelren. All three work. All three make real trade-offs. And every one of them tells you they’re the cheapest and fastest, which obviously can’t all be true.
This is an honest breakdown for UK travellers: actual pricing in pounds, which carriers each brand routes through in the countries you’re most likely to visit, and when each option is genuinely the right call. We’ll use Opensignal’s public country data rather than marketing claims, and we’ll put our own prices next to the competition so you can decide for yourself.
Travelren keeps the spreadsheet that compares our margins to our competitors. Our team would rather tell you Airalo or Holafly is the better pick for your trip than oversell you on us, because the cost of you buying the wrong eSIM and never returning is higher than the cost of losing today’s sale.
The quick answer, before you scroll
Short version: a week in Tokyo using about 5GB costs roughly £7 with Travelren, £7 with Airalo, or £30 with Holafly for ten days of unlimited. A week in Bangkok: around £5 with Travelren, £5 with Airalo, £18 with Holafly. A week in New York: about £7 with Travelren, £10 with Airalo, £30 with Holafly.
Travelren and Airalo are close to price parity on most plans. Holafly runs 3 to 4 times more expensive because they only sell unlimited plans. The real differences sit in data structure, support, and what happens when things go wrong — not the headline price.
Prices in GBP, retail (no first-buyer discounts). USD converted at 0.79. Last verified April 2026.
How we actually compared them
We pulled current retail prices on each provider in April 2026 — around 3GB over 30 days, or the unlimited equivalent for Holafly. USD converted to GBP at 0.79. Prices are retail, not first-purchase-discounted, because those codes expire and you can’t bank on them for your next trip.
Carrier routing is from Airalo’s network disclosures, Holafly’s plan pages, and our own supplier confirmations. Network performance comes from Opensignal country reports — free, independent, the industry standard for measured rather than advertised speeds.
Europe: where most UK travellers actually go
If you’re reading this from the UK your next trip is probably to Europe — Paris, Barcelona, Rome, Amsterdam, or the full Mediterranean circuit. This is where the eSIM decision differs most from every other market.
First, the unusual thing about UK travellers: many of you don’t need a travel eSIM for Europe at all. EE’s Full Works plan includes Zone 1 roaming at no extra cost, covering most of the EU plus a handful of other destinations. If you’re on Full Works, you can land in Paris, use your existing UK allowances, and pay nothing extra. For other EE customers, the Roam Abroad Pass is £2 per day across most of Europe.
Compared to eSIMs:
Europe regional — 5GB over 30 days, 25+ country coverage
Travelren regional: approximately £13
Airalo “Eurolink”: approximately £11, category leader for multi-country Europe
Holafly regional Europe: 10 days unlimited at approximately £27
The honest recommendation for Brits visiting Europe: check your UK plan first. If you’re on EE Full Works, a Three plan with international roaming, or Vodafone’s Xtra bundles, your home plan probably covers Europe at no extra cost. An eSIM is additive only if you need more data than your home plan allows or if you’re visiting a non-EU country in the same trip. For multi-country trips outside the standard EU roaming zone, Airalo’s Eurolink is the strongest regional option — honestly better than what Travelren offers.
USA: where eSIMs actually save serious money
The United States is outside EE’s free roaming zone and every UK carrier’s roaming there is expensive. This is the trip where eSIM economics pull clear.
USA — 3GB over 30 days
Travelren: £7, routes on T-Mobile and Verizon 5G
Airalo “Change”: approximately £10, routes on T-Mobile and Verizon
Holafly: 10 days unlimited at approximately £30
EE charges £5 per day for USA roaming (or free if you’re on Full Works). For a two-week US trip, Full Works is genuinely competitive with eSIM options since you pay nothing extra. For non-Full-Works customers, even a 5-day US trip runs £25 in EE roaming charges alone — the same or more than a month of Travelren or Airalo coverage.
T-Mobile is the primary carrier on both Travelren and Airalo’s US plans. Opensignal’s US reports have consistently placed T-Mobile first for 5G availability and rural reach, with Verizon edging ahead on peak urban speeds. For the standard UK-to-US itinerary (New York, LA, Vegas, a national park) T-Mobile primary is a genuine plus.
The honest recommendation: Full Works holders don’t need to do anything for a short US trip. Everyone else: for any trip longer than a weekend, an eSIM saves serious money. Travelren is about 30% cheaper than Airalo at retail rates on US plans. Browse the full USA eSIM range from 1GB through 20GB.
Japan: the long-haul splurge
Japan is a growing destination for UK travellers and a good case for eSIMs because EE charges £5 per day there for non-Full-Works customers.
Japan — 3GB over 30 days
Travelren: £7, routes on SoftBank and KDDI 5G
Airalo “Moshi Moshi”: approximately £7, routes on SoftBank and KDDI
Holafly: no 3GB plan, 10 days unlimited at roughly £30
Opensignal’s April 2025 Japan Mobile Network Experience report awarded NTT Docomo the 5G download speed crown at 168 Mbps, with SoftBank on top for 5G availability. For most visitors to Tokyo, Osaka, or Kyoto, you’ll exceed 100 Mbps on SoftBank or Docomo — no practical difference. The gap matters for rural Hokkaido or the Japan Alps, but no consumer eSIM routes on Docomo-primary, so that’s a limitation across all three brands.
The honest recommendation: for a two-week Japan trip, EE roaming at £5/day is £70 total. Travelren or Airalo at £7 for 30 days of data is roughly 90% cheaper. Full Works customers don’t get Japan included — Japan is outside Zone 1. Travelren and Airalo are price-parity here; pick on app preference.
Thailand: the cheapest destination
Thailand is cheap across every eSIM provider. It’s also genuinely cheap on EE — £5/day under the Daily Roaming Pass.
Thailand — 3GB over 30 days
Travelren: £5, routes on AIS 5G
Airalo “Vapor”: approximately £5, routes on AIS and True Corp
Holafly: 10 days unlimited at approximately £18
AIS leads Opensignal’s Thailand rankings on 5G availability and rural reach. Both Travelren and Airalo route AIS-primary. Network experience is effectively identical.
The honest recommendation: for a weekend trip to Bangkok (say Thursday to Monday), EE roaming at £5/day is roughly £20 — within a fiver of a month of eSIM coverage and simpler because you don’t install anything. For a week or longer, eSIM becomes dramatically cheaper. Travelren and Airalo are indistinguishable.
What matters beyond the headline price
Prices shift. Today’s edge can reverse next month. The structural differences between the three are what actually matter.
Fixed data vs unlimited
Travelren and Airalo sell fixed-data plans: buy 3GB, 10GB, or 20GB, and that’s your budget. Top up if you run out, or finish the trip on WiFi. Holafly only sells unlimited — pay more upfront, never think about data. For remote workers, content creators, and anyone using Google Maps all day while also video-calling home, Holafly’s approach removes a small but real source of trip anxiety.
Worth knowing: Holafly’s “unlimited” throttles above roughly 90GB per month and caps hotspot at 500MB per day. Before you assume it means tethering a laptop for a week of work, read the fine print.
Customer support
Difficult to benchmark fairly from inside one of the three brands, so here’s what the forum consensus says. Holafly’s 24/7 WhatsApp support is the strongest for real-time issues — they deliver on the promise. Airalo runs in-app chat with response times that vary by time zone (a UK-favourable gap because their support teams cover European hours well). Travelren responds via email — we’re in Sydney, so UK morning = Sydney evening, meaning replies typically land overnight. For urgent activation issues Holafly wins. For most questions any of them are fine.
When the primary network drops
None of the three lets you manually switch carriers inside a plan — your phone auto-selects the strongest signal from partner networks. If the primary has an outage locally, all three fail the same way. Keeping your home SIM active as a secondary line for calls and SMS is the real insurance, not the brand you pick.
A clear recommendation matrix for UK travellers
EE Full Works customer, European trip: don’t buy an eSIM. Your home plan covers it.
Non-Full-Works, multi-country Europe: Airalo Eurolink. Category leader, honestly better than our own regional offering.
US trip longer than a weekend: Travelren. About 30% cheaper than Airalo on US plans and T-Mobile primary.
Japan or Thailand, any length: Travelren or Airalo. Near-identical pricing, same carriers.
Month-long trip, heavy data use, hate topping up: Holafly. The only brand that makes unlimited practical.
Short EU weekend (2–3 days) and you’re not on Full Works: EE Daily Pass at £2 is simpler than installing an eSIM.
Digital nomad staying longer than three weeks in one country: physical local SIM on arrival. Cheapest per GB, costs time and sometimes passport registration.
What we’re not trying to change your mind about
If you’ve used Airalo three times and the app is muscle memory, a £1 difference isn’t worth the switching friction. If Holafly let you down once, trust that. If Travelren is new to you, try us on a short trip before a big one. Sensible behaviour.
What we do want you to do: pick one, install it before you fly, and confirm it works at home rather than fighting airport WiFi. All three brands let you install days or weeks before activation. Don’t leave it to the jetway.
Before anything: make sure your phone supports eSIM
Every comparison assumes your phone can run an eSIM. Most iPhones from the XS onwards, every recent Google Pixel, and most flagship Samsung Galaxy devices work. The main exception is iPhones originally purchased in mainland China — they lack the eSIM hardware even when the model number looks identical to a UK-sold unit. If you’re unsure, our device check tool confirms in 30 seconds. Works for every eSIM brand, not just ours.
Frequently asked questions
Do I need a travel eSIM if I’m on EE Full Works?
For most European trips, no — Full Works includes free roaming in Zone 1 (most EU countries plus a handful of others). For non-EU destinations like the USA, Japan, Thailand, or Australia, Full Works charges £5 per day, which adds up fast. For trips longer than three days outside Zone 1, an eSIM is dramatically cheaper.
Is Travelren cheaper than Airalo for UK travellers?
On most destinations Travelren and Airalo are within a pound of each other in GBP. The exception is the USA, where Travelren is about 30% cheaper at retail. Airalo’s Eurolink regional plan is slightly cheaper than Travelren’s regional Europe option and is the category leader for multi-country trips. For Japan, Thailand, and the UK the prices are close enough that interface preference matters more.
Will an Airalo, Holafly, or Travelren eSIM work on my UK iPhone?
Yes. Every iPhone from XS (2018) onwards sold in the UK supports eSIM. The exception is iPhones originally bought in mainland China, which lack the eSIM hardware even when the model number matches. Our device check tool confirms in 30 seconds — works for any eSIM brand, not just ours.
Can I keep my UK number active while using a travel eSIM abroad?
Yes — that’s the whole point of dual-SIM phones. Keep your UK SIM active for calls and SMS (banks, two-factor auth, family contact) and route data through the travel eSIM. Turn data roaming off on the UK line in Settings before you fly so you don’t accidentally rack up charges.
What happens if my eSIM data runs out mid-trip?
Top up from inside the brand’s app — usually under a minute, the new allowance activates immediately. Travelren, Airalo, and Holafly all support in-app top-ups. Fixed-data plans (Travelren and Airalo) require you to remember to do it; Holafly’s unlimited plans skip this entirely but cost 3–4x more upfront.
The final take
Travel eSIMs have matured quickly. Five years ago the honest answer was “sort it on arrival.” Today Travelren, Airalo, and Holafly all ship products that work from the jet bridge onward. The real question is no longer whether to use an eSIM — it’s which one fits your specific trip.
For most UK travellers on most trips, Travelren and Airalo are effectively interchangeable. Holafly is the premium option: pay more, worry less. Physical local SIMs remain cheapest per GB for long stays. And if you’re on EE Full Works and heading to Europe, you might not need a travel eSIM at all — your home plan has you covered.
Whichever you pick, install at home, keep your home SIM active as a secondary line, and confirm your phone supports eSIM before you assume it does. That’s 90% of what matters.
Last updated: April 2026. Prices verified against each provider’s public pages at time of writing. Carrier information sourced from Opensignal country reports and provider network disclosures. We update this article quarterly as prices and carrier routing change.
