Vietnam eSIM
Choose your plan
Network coverage in Vietnam
Vietnam has fast and reliable mobile coverage across every major city and along all main highways and rail routes. Your Travelren Vietnam eSIM roams on Viettel as the primary network — the country's largest carrier, military-owned, and the only operator with strong rural and mountain reach — with Vinaphone as a fallback. Viettel's 5G is live in Hanoi, Ho Chi Minh City, Da Nang, Binh Duong, and Dong Nai, with the network operating roughly 30,000 5G base stations covering around 90% of outdoor areas nationwide. 4G LTE is solid across Hoi An, Hue, Nha Trang, Phu Quoc, Halong Bay, Dalat, Can Tho, and the rest of mainland Vietnam. Coverage drops on mountain passes deep in Ha Giang and Sapa, in remote stretches of the Mekong Delta, and on smaller offshore islands like Con Dao — Viettel is still the strongest of any Vietnamese network in those areas.
What works in Vietnam
✅ Works well
- Grab and Bolt rideshare — including motorbike taxis (xe ôm), the everyday way to move around HCMC and Hanoi
- Google Maps and Apple Maps turn-by-turn navigation across mainland Vietnam
- WhatsApp, Zalo, Messenger, and Viber over data — Zalo is the default messaging app in Vietnam
- Google Translate camera mode for menus, signs, and street food stalls
- GrabFood, ShopeeFood, and Be for food delivery in HCMC, Hanoi, and Da Nang
- Booking long-distance buses and sleeper trains via 12Go Asia, Baolau, and Vexere
- Streaming on 5G in central Hanoi, HCMC, and Da Nang — typical 5G speeds in the 80–200 Mbps range
- Tethering a laptop or tablet from cafes, hotels, and co-working spaces in tourist hubs
⚠️ Watch out for
- Mountain passes in Ha Giang (the Ha Giang Loop), Sapa, and the central highlands can drop signal entirely between villages — Viettel is the strongest of any Vietnamese carrier there, but no network covers every valley
- Remote Mekong Delta channels, the Con Dao islands, and smaller offshore islands have weak or no signal — plan to be offline on long boat trips
- Vietnamese banking and government apps (VNeID, Momo identity verification, VietinBank, Vietcombank) require a Vietnamese phone number for SMS OTP — none are tourist essentials
- Cash is still required at most street food stalls, traditional markets, smaller homestays, and rural shops outside major cities — keep a few hundred thousand dong on hand
Arriving in Vietnam
Tan Son Nhat (SGN) in Ho Chi Minh City, Noi Bai (HAN) in Hanoi, and Da Nang (DAD) all offer free airport WiFi in arrivals — networks named "FreeWifi TanSonNhat Airport", "Noi Bai Free Wi-Fi", or similar — usable for messaging and a hotel lookup, slow at peak hours. Viettel, Vinaphone, and MobiFone run 24-hour SIM kiosks in arrivals at all three airports from around 200,000–300,000 dong (roughly AUD$12–18) for a tourist data plan, but Vietnamese law (Circular 08/2026) requires a passport scan and photo of the traveller for any local SIM — an eSIM bought before you fly skips that registration step entirely. Hanoi Metro lines 2A (Cat Linh–Ha Dong) and 3 (Nhon–Hanoi Station) accept tap-to-pay with international Visa contactless cards or mobile wallets via Visa's rollout from March 2026. Ho Chi Minh City Metro Line 1 (Ben Thanh–Suoi Tien), open since late 2024, also accepts Visa, Mastercard, and NAPAS contactless taps directly at the gate. Contactless cards work at hotels, mid-range restaurants, supermarkets, and convenience stores in cities; cash dominates everywhere else. ATMs are widespread in tourist areas.
Installing your Vietnam eSIM
iPhone: Settings → Mobile Data → Add eSIM → scan the QR code from your email. Android: Settings → Connections → SIM Manager → Add eSIM. Takes about two minutes.
Install your Vietnam eSIM at home on your own WiFi before you fly — it takes about two minutes. On iPhone: Settings → Mobile Data → Add eSIM, then scan the QR code from your email. On Android: Settings → Connections → SIM Manager → Add eSIM. Leave your home SIM as the primary line for calls and SMS. Switch the Vietnam eSIM on for data only when you land. Your home number stays active throughout the trip. If you forget to install before departure, Tan Son Nhat, Noi Bai, and Da Nang all have free airport WiFi sufficient for a two-minute install — and Vietnamese SIM passport registration only applies to physical SIMs, not your pre-purchased eSIM.
Leave your home SIM in. Set the Vietnam eSIM as your data line only. Your number stays active the whole trip.
Good to know
Calls and SMS
Most plans are data only — use WhatsApp or FaceTime for free. Look for the phone chip plan if you need a local number.
Compatibility
Your phone must be eSIM compatible and network-unlocked. Check yours →
Refunds
If your eSIM doesn’t activate, we’ll refund you in full. No questions asked.
Common questions
Which carrier does Travelren use in Vietnam?
Will my eSIM work in Halong Bay, Sapa, and the Ha Giang Loop?
Can I tap my phone to pay for the Hanoi and HCMC metros?
Does Vietnam support eSIM?
Can I use my eSIM at Tan Son Nhat and Noi Bai airports?
How much does roaming cost without a Travelren eSIM?
Do I need to register my SIM with my passport in Vietnam?
Can I use Grab and motorbike taxis with my eSIM?
Still deciding? See Vietnam plans from $4