Best eSIM for Vietnam: how to choose, and what to buy
Short answer: For Vietnam, 3 to 5 GB (5 GB is £10.99) covers most trips, including a Hanoi to Ho Chi Minh City route. Vietnam has three national networks and strong coverage in cities and tourist areas.
Vietnam is long and thin, and most visitors travel along it, which makes it a country where a single national plan fits an itinerary that crosses the whole country.
Which plan to buy for your trip length
For Vietnam we currently sell 5 plans, from 1 GB for £2.99 up to 20 GB for £25.49. Matching those to the length of a trip gives the table below.
| Trip length | Light use (maps, messaging) | Moderate use (plus social, photos) |
|---|---|---|
| 3 days | 1 GB · £2.99 (7 days) | 3 GB · £7.49 (30 days) |
| 7 days | 3 GB · £7.49 (30 days) | 5 GB · £10.99 (30 days) |
| 14 days | 3 GB · £7.49 (30 days) | 10 GB · £17.49 (30 days) |
| 30 days | 10 GB · £17.49 (30 days) | 20 GB · £25.49 (30 days) |
Planning figures, not guarantees: roughly 200 MB a day for light use and 500 MB a day for moderate use. Daily video streaming, video calls and large downloads use far more. The plan shown is the cheapest one in our live catalogue that is both big enough and valid long enough.
Vietnam eSIM plans and prices
Our plans for Vietnam connect to Viettel Mobile, Vinaphone and MobiFone, and the phone picks between them. The best value per gigabyte is the 20 GB plan, at £1.27 a gigabyte.
| Data | Valid for | Price | Per GB |
|---|---|---|---|
| 1 GB | 7 days | £2.99 | £2.99 |
| 3 GB | 30 days | £7.49 | £2.50 |
| 5 GB | 30 days | £10.99 | £2.20 |
| 10 GB | 30 days | £17.49 | £1.75 |
| 20 GB | 30 days | £25.49 | £1.27 |
North to south on one plan
Hanoi, Hoi An, Da Nang, Hue, Nha Trang and Ho Chi Minh City are all well covered, so a single plan carries you the length of the country. That is the main practical advantage over buying per-region plans.
Mountains and the bay
The northern mountains around Sapa and Ha Giang, and overnight boat trips in Ha Long Bay, are where signal gets uneven. Download maps and bookings before you go.
Ride-hailing and everyday use
Ride-hailing and food delivery are routine in Vietnamese cities and need data from the moment you land, which is the best argument for an eSIM that is already installed before the flight.
Related guides
- Vietnam eSIM plans — every plan and price
- Cheapest eSIM for Vietnam — cost per gigabyte
- Best eSIM for travel — how to choose
- Comparing eSIM providers fairly
- Check your phone supports eSIM
We sell eSIMs, so this is a seller’s guide. Prices on this page were read from our catalogue on 7 November 2026; coverage notes are general, so check the plan before paying.
