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.

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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 →
eSIM for Vietnam: Coverage, Viettel & How Much Data to Bring
Internet in Vietnam: How to connect (options and the best)
eSIM for Hanoi: connectivity from Noi Bai Airport and GB for Northern Vietnam
The Best eSIM for Vietnam in 2026: Comparison, Prices, and Coverage
eSIM for Vietnam: Hanoi, Ha Long Bay & Ho Chi Minh City
eSIM for Vietnam — Mobile Data for Travelers
