eSIM plans for Vietnam

Compare and buy your Vietnam eSIM: 4G/5G internet nationwide, no SIM card swap required, and QR activation in one minute. Land in Hanoi or Saigon with data from the very first second.

See the eSIM for Vietnam

Ha Long Bay in Vietnam — PuraSIM Vietnam eSIM
1 destinations

Why do you need an eSIM for Vietnam?

Vietnam is not part of the European Union, so your Spanish "roam like home" plan won't work here: as soon as you land in Hanoi or Ho Chi Minh, your operator will charge you international roaming at a premium price. And with how much you'll be using your phone—Google Maps through alleys, Grab to get around, the translator in every market, and photos of Ha Long Bay—running out of data in Vietnam is not an option.

You have three inconvenient options: activate your operator's roaming and pay a fortune, queue at the airport for a local SIM (with passport, registration, and removing your Spanish SIM), or carry a pocket WiFi that needs to be returned and kept charged. An eSIM solves all of these: you buy it before traveling, scan a QR code, and land with internet working, without changing cards and keeping your WhatsApp number.

How much does roaming cost in Vietnam?

As it's outside the EU zone, Spanish operators place Vietnam in their most expensive zones. A daily roaming bundle costs around €6 to €15 per day depending on the company, and without a bundle, individual megabytes are charged at several euros per MB, leading to bill shocks of €200-300 upon your return. For two weeks, we're talking about €100-200 just for data. A PuraSIM eSIM covers the entire trip for a fraction of that: the savings exceed 80-90%.

How much does an eSIM for Vietnam cost?

Plans have no commitments or contracts: you choose the GB and days you need and pay only for that. A one-week plan with plenty of data costs significantly less than a single day of traditional roaming. Take a looksee all eSIM plans for Vietnam to find the one that fits your itinerary.

How many GB do I need for Vietnam?

It depends on whether you heavily use maps and social media or if you connect to the hotel's WiFi at night. As a reference, with daily connections to Google Maps, messaging, and some social media, normal use consumes around 1 GB every two or three days. This table will guide you:

Duration Light use Normal use Heavy use
3-4 days 1 GB 3 GB 5 GB
1 week 3 GB 5 GB 10 GB
2 weeks 5 GB 10 GB 20 GB

What is the best eSIM for Vietnam?

The best eSIM is one that relies on Vietnam's leading local networks: Viettel (the country's widest coverage, unbeatable in rural and mountainous areas), Vinaphone (VNPT)Mobifone. PuraSIM eSIMs connect to these operators to give you stable 4G/LTE and 5G where it's already deployed, without relying on a single antenna.

  • Connects to the local network with the best coverage in each area (Viettel, Vinaphone or Mobifone).
  • Activation in 1 minute by scanning the QR, without paperwork or passport registration.
  • Share data via hotspot with your laptop, tablet, or your companion's phone.
  • No commitments, with Spanish support and guarantee if something goes wrong.

Coverage in Vietnam: city by city

  • Hanoi: full 4G/5G coverage in the city center and at Noi Bai Airport (HAN); strong signal in the Old Quarter and on the subway (Cat Linh–Ha Dong line).
  • Ho Chi Minh (Saigon): excellent 4G/5G throughout the city center, at Tan Son Nhat Airport (SGN) and on the new metro Line 1.
  • Da Nang and Hoi An: very good coverage on the central coast, beaches, and Hoi An's old town.
  • Ha Long Bay: decent signal on land and at the port; may weaken on cruises further out to sea among the islets.
  • Sapa and the mountainous north: Viettel dominates here; there is 4G in the town and main routes, with blind spots in the rice valleys.
  • Phu Quoc and Nha Trang: good coverage in tourist areas, hotels, and beaches of the southern islands.

eSIM, local SIM or pocket WiFi

A local SIM is cheap for data, but it requires queuing at the airport, showing your passport, and removing your Spanish SIM (goodbye bank SMS). A pocket WiFi supports several devices, but it's another gadget to carry, watch over, and return, and if you move away from it, you lose connection. An eSIM combines the best of both: local SIM prices without paperwork, prior activation from home, and your Spanish number always operational for calls and verifications.

How do you activate the eSIM for Vietnam?

  • Buy the plan on the website and receive your QR code instantly by email.
  • Install it at home with WiFi: scan the QR and the eSIM is loaded onto your phone.
  • Activate it upon arrival in Vietnam by choosing the eSIM as your data line.
  • Connect: in seconds you'll have internet, without searching for stores or antennas.

Tips to avoid overspending

  • Deactivate the data roaming on your Spanish SIM and only use the eSIM for browsing.
  • Download offline maps of Hanoi, Saigon, or Sapa before you leave.
  • Take advantage of hotel and cafe WiFi for large downloads and video calls.
  • Estimate your GB with a margin; if you run out, top up with another plan in a minute.

Are you traveling to more destinations?

If Vietnam is just one stop on a longer trip, we have a plan for each leg. Combine it with our eSIM for Thailand or the eSIM for Indonesia if you're continuing through Southeast Asia, check all Asia plans for a multi-country route, or choose a world plan if your itinerary crosses continents.

Guides for travelling to Vietnam

See all guides →
Frequent questions

Your eSIM for Vietnam, no doubt

The price goes up depending on the GB and days you pick. An eSIM for a week-long trip usually costs far less than a single day of traditional roaming, with no commitment and no contracts.
The best one relies on the leading local networks: Viettel, Vinaphone and Mobifone. Viettel has the widest coverage in the country, especially in rural and mountain areas like Sapa, so an eSIM using these networks gives you a stable signal almost anywhere.
For normal use (maps, messaging and social) count on around 1 GB every two or three days. A week is usually fine with 5 GB, and two weeks with 10 to 15 GB if you lean heavily on Google Maps and Grab.
Yes. In Ha Long there's a good signal on land and at the port, though it can weaken on cruises out among the islets. In Sapa and the mountainous north, Viettel's coverage reaches the town and the main trails, with the odd dead spot in the valleys.
Most phones from 2019 on are: iPhone XS/XR and later, Samsung Galaxy S20 and up, or Google Pixel 3 and later, among others. Check in Settings whether 'Add eSIM' appears, or dial *#06# to see if your phone has an EID.
Install it at home over WiFi before you travel, scanning the QR code calmly. You activate it when you land in Vietnam by choosing the eSIM as your data line; on many plans the days start counting from that first connection.
Yes, where it's already rolled out. Vietnam launched commercial 5G in late 2024 with Viettel and Vinaphone, and it already covers parts of Hanoi, Ho Chi Minh City and Da Nang. Outside those areas you browse on 4G/LTE, which works very well across the country.
Yes, our eSIMs let you share internet via hotspot. You can connect your laptop, a tablet or your travel companion's phone and have everyone run off the same plan, always within the GB you purchased.
No, it's a data-only plan, so it doesn't include a Vietnamese number for regular calls or SMS. You keep your usual number on your physical SIM for calls and for apps like WhatsApp or Telegram, while the eSIM handles just the data.
There are no overage charges or surprises: when your GB runs out, you simply stop browsing. You can buy and activate another plan in a couple of minutes from the website, with no paperwork to repeat and nothing to change on your phone.
No. The eSIM works alongside your physical SIM: you leave your home SIM in for calls and texts with data roaming off, and use the PuraSIM eSIM to browse. That way you avoid roaming charges and stay reachable on your usual number.
No. Vietnam is in Southeast Asia, outside the European Union, so a 'roam like at home' plan doesn't apply and data is billed at high rates. That's why a local eSIM is the cheapest way to get internet there.
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