Vietnam is one of the most fascinating destinations in Southeast Asia: the chaotic energy of Hanoi, the breathtaking Ha Long Bay, the lanterns of Hội An, the ruins of Mỹ Sơn, vibrant Ho Chi Minh City, and the beaches of Phú Quốc. There is much to discover, and to make the most of it, you need to stay connected.
In this comprehensive guide, we explain everything you need to know about the eSIM for Vietnam: available plans, coverage by destination, how to install it, and what to expect from connectivity in each region of the country.
1. Why use eSIM in Vietnam — advantages over other options
When you arrive in Vietnam as a tourist, you have several ways to get connected:
- International roaming: automatic but very expensive. European operators charge very high daily rates in Vietnam.
- Local Vietnamese SIM: very affordable (Viettel, Mobifone, Vietnamobile), but requires purchasing upon arrival, may involve paperwork, and doesn't always include international data for all apps.
- International eSIM: the best option for tourists — you buy it from home, it works from the moment you arrive, and you don't have to do anything upon arrival.
If Vietnam is part of a longer trip through Southeast Asia that includes Thailand, Cambodia, or Indonesia, consider a regional eSIM plan for Asia that covers all countries.
2. How many GB do you need for your trip to Vietnam?
Vietnam has good WiFi in most hostels, hotels, and cafes. But when you are exploring temples in Hội An, cruising Ha Long, or touring the Mekong by boat, the eSIM is your only source of data.
| Trip duration | Recommended GB | Type of usage |
|---|---|---|
| 1 week | 8–10 GB | Moderate tourist |
| 2 weeks | 15–20 GB | Active tourist |
| 3+ weeks / nomad | 30 GB or unlimited | Remote work, heavy video use |
A practical tip: download offline maps of Vietnam before you leave. Google Maps and Maps.me allow you to download entire regions of the country for use without data.
3. eSIM plans for Vietnam available on PuraSim
On PuraSim, you will find eSIM plans for Vietnam designed for different types of travelers:
| Plan | Data | Validity | Ideal for |
|---|---|---|---|
| Basic VN | 5 GB | 10 days | Short trip with lots of WiFi |
| Standard VN | 10 GB | 15 days | Classic 1–2 week route |
| Premium VN | 20 GB | 30 days | Long trip, active users |
| Regional Asia | 15 GB | 30 days | Vietnam + neighboring countries |
4. eSIM coverage by destination in Vietnam
- Hanoi: excellent 4G coverage throughout the city, including the Old Quarter and Hoan Kiem Lake.
- Ha Long Bay: good coverage on the water between the islands. On overnight boats, there may be areas with reduced signal.
- Hội An: very good 4G coverage. The ancient town has excellent signal.
- Ho Chi Minh City (Saigon): one of the best coverages in the country, with 4G/5G available.
- Sapa and mountainous north: more limited coverage in high mountain areas and remote villages. Sapa town has good signal.
- Phú Quốc: good coverage on the island, especially in the south and central areas.
- Mekong Delta: variable coverage; good in cities like Cần Thơ, more limited in rural canals.
5. Connectivity tips for Vietnam
- Install a VPN before you leave: some apps and services may be restricted. A VPN ensures full, unrestricted access.
- Grab is essential: the equivalent of Uber in Southeast Asia. You need data to order taxis, motorbikes, or food delivery.
- Google Translate with offline download: download the Vietnamese language pack to use camera mode without data.
- Download offline maps: especially for rural areas and long bus or train journeys.
- Power bank: Vietnam's heat can make your phone warm up more, consuming more battery. Carry a power bank.
If you're also visiting Japan on your Asian itinerary, you might be interested in our guide on eSIM for Japan 7 days.
Frequently Asked Questions about eSIM for Vietnam
How many GB do I need for Vietnam?
For one week in Vietnam, we recommend 8–10 GB. For 2 weeks, between 15 and 20 GB. Vietnam has excellent 4G coverage on the main tourist routes.
Does the eSIM cover the entire North-South route of Vietnam?
Yes. The Hanoi — Ha Long — Hội An — Ho Chi Minh route has excellent 4G coverage. In mountainous areas of the north (Sapa, Ha Giang), the signal may be more limited.
Do I need a VPN in Vietnam to use the internet?
It is recommended to have a VPN configured before arriving to access all apps and services without restrictions.
Does the eSIM for Vietnam include Cambodia or Laos?
Individual plans for Vietnam do not include Cambodia or Laos. If you are visiting several Southeast Asian countries, choose a regional eSIM plan for Asia.
What internet speed does Vietnam have?
Vietnam has a very good 4G infrastructure in cities and tourist areas. You can expect very good 4G/LTE speed in Hanoi and Ho Chi Minh City. In rural areas, the speed may decrease.
Preparing your trip to Vietnam? Get your connection sorted from home.
View eSIM Vietnam plans
