eSIM for Vietnam: mobile data from Hanoi to Ho Chi Minh City
Staying online in Vietnam with a travel eSIM — coverage from the north to the south, how much data a trip takes, and setting it up before you fly.
In short
- A travel eSIM for Vietnam uses the three main Vietnamese networks, with fast 4G across the country and 5G in the big cities.
- Vietnam is a long country travelled by bus, train and motorbike — a connection on the road helps with maps, rides and bookings.
- It is installed at home, so there is no SIM shop to find after landing.
- For two weeks from north to south, 5–10 GB covers maps, rides, messages and photos for most travellers.
- Going on to Thailand, Cambodia or Malaysia? A Southeast Asia regional package covers them with one eSIM.
Contents
A typical Vietnam trip runs the length of the country: Hanoi and Ha Long Bay in the north, Hoi An and Da Nang in the middle, Ho Chi Minh City and the Mekong Delta in the south. Along the way you book buses and hotels, call rides and follow maps through busy streets. A travel eSIM keeps all of that working from the first day.
Coverage and speed
A travel eSIM for Vietnam uses the main Vietnamese mobile networks. 4G covers the cities, the coast and the main travel routes; 5G is available in parts of Hanoi, Ho Chi Minh City and Da Nang. In the northern mountains around Sapa and Ha Giang the signal is good in towns and patchy on the passes.
The networks each package uses are listed on the Vietnam page.
How much data do you need?
| Trip | Typical use | Package |
|---|---|---|
| A week, one or two cities | Maps, ride apps, messages | 3 GB |
| Two weeks, north to south | Plus photos, social media, bookings | 5–10 GB |
| A month or more | Video calls, streaming, sharing | 20 GB or more |
| Remote work | Laptop hotspot, video meetings | 50 GB |
Vietnam and its neighbours
Many routes continue to Cambodia, Laos or Thailand. A Southeast Asia regional package covers several countries with one eSIM. See the regions on the packages page.
Setting it up
- Check that your phone supports eSIM and is unlocked.
- Buy a package on the Vietnam page; the QR code comes to your email and account.
- Install it at home over Wi-Fi — the install guide shows each step.
- When you land, turn on data roaming for the eSIM line and choose it for mobile data. Keep data roaming off on your own line.
Questions and answers
Does the eSIM work in Ha Long Bay and on the islands?
Yes, Ha Long Bay, Phu Quoc and the other popular islands are covered; out at sea between islands the signal can drop for a while.
Do I get a Vietnamese phone number?
No, a travel eSIM is data only. Your own number stays on your own SIM for calls and SMS.
When do the package's days start?
When the eSIM first connects to a network in Vietnam, not when you buy or install it.
See the packages for Vietnam — the price is shown upfront, with nothing added later.
Ready for your trip?
An eSIM for 200 countries: set up in minutes, with no roaming bill.