A Slashtel travel eSIM for Vietnam connects to Viettel Mobile, Vinaphone, MobiFone or Vietnamobile, up to 5G. Your phone picks the strongest signal automatically.
Vietnam has four main mobile networks: Viettel Mobile, Vinaphone, MobiFone and Vietnamobile. Your eSIM joins the strongest partner network automatically, so you do not pick one. 5G is available, and a data plan starts from $2.59. Mobile subscriptions reach 128 per 100 people, so coverage is wide.
Last checked: October 2026
Vietnam has four mobile networks: Viettel Mobile, Vinaphone, MobiFone and Vietnamobile. Your eSIM connects automatically to the strongest partner network where you are, and it cannot be locked to one carrier. You do not need to choose a network or change settings.
The eSIM is a data-only travel plan on a country plan. It gives you mobile data in Vietnam but no local phone number. WhatsApp and app calls work over data. Your own SIM stays in your phone for calls and bank texts.
To get started, follow these steps:
You can add more data to the same eSIM online without a new QR code.
5G is available in Vietnam. Viettel Mobile, Vinaphone, MobiFone and Vietnamobile operate mobile networks, and 5G is the newest generation. Mobile subscriptions reach 128 per 100 people and 84 percent of people use the internet, so you can expect data in most places you visit.
Your eSIM uses the strongest partner network automatically, so you do not need to check which carrier has 5G where you are. The phone joins the network with the strongest signal it can find.
Coverage is wide because mobile subscriptions are high. Internet use is also high at 84 percent, which means data works for maps, messaging and app calls in towns and along main travel routes. The facts on this page were checked on 31 October 2026.
Your phone will work in Vietnam if it supports eSIM and is carrier unlocked. Most recent iPhone, Samsung Galaxy and Google Pixel models do. Check these two things before you buy a plan, because an eSIM cannot be installed on a phone that does not support it or is locked to a carrier.
You keep your own SIM in the phone for calls and bank texts. The eSIM handles data. WhatsApp and app calls work over data, so you can stay in touch without a local number.
If you are not sure about your model, check the phone settings for eSIM support. Also confirm with your home carrier that the phone is carrier unlocked. These checks take a minute and save problems at the airport.
Install the eSIM on Wi-Fi before your flight. You get a QR code by email in minutes after you buy. Your plan days start when the eSIM first connects in Vietnam, not when you buy it, so you can set it up early without losing days.
Prices are in US dollars. The price you see before payment is the price you pay, with nothing added at checkout. Payment is by Apple Pay, Google Pay or a card your bank confirms.
If data does not start after you land, turn on data roaming for the eSIM line. The APN is set automatically on most phones. You can add data to the same eSIM online without a new QR code.
Plan sizes include 1, 2, 3 and 5 GB, and lengths are 7, 15 and 30 days.
| Network | Best available |
|---|---|
| Viettel Mobile | 5G |
| Vinaphone | 5G |
| MobiFone | 5G |
| Vietnamobile | 4G |
| Data | Validity | Price | Per GB |
|---|---|---|---|
| 1GB | 7 days | $2.59 | $2.59 |
| 2GB | 15 days | $4.19 | $2.10 |
| 3GB | 15 days | $4.89 | $1.63 |
| 3GB | 30 days | $5.99 | $2.00 |
| 5GB | 30 days | $8.89 | $1.78 |
| 10GB | 30 days | $15.29 | $1.53 |
| 20GB | 30 days | $25.19 | $1.26 |
Vietnam eSIM in your language: Deutsch · Français · Español · Italiano · Português · 日本語
Most unlocked 4G and 5G phones work in Vietnam. Your own SIM works only if your home network has a roaming deal there, often at a daily charge. A travel eSIM adds local data on Viettel Mobile, Vinaphone, MobiFone or Vietnamobile without roaming fees, as long as your phone supports eSIM.
Travel eSIMs in Vietnam connect to Viettel Mobile, Vinaphone, MobiFone or Vietnamobile. Network choice is automatic and depends on where you are.
A Slashtel eSIM for Vietnam connects to Viettel Mobile, Vinaphone, MobiFone or Vietnamobile. Your phone joins the strongest available network automatically as you move around.
Yes, 5G is available on partner networks in Vietnam where coverage reaches and your phone supports it. Elsewhere you connect on 4G.
No. The eSIM selects the network with the best signal automatically, which keeps you connected as you travel. It cannot be locked to one carrier.
Validity starts when your eSIM first connects to a network in Vietnam, so you can buy and install it before you fly.
Vietnam has four mobile networks: Viettel Mobile, Vinaphone, MobiFone and Vietnamobile. Your eSIM joins the strongest partner network automatically, so you do not choose a carrier. It cannot be locked to one network.
Yes, 5G is available in Vietnam. The four networks operate mobile services, and 5G is the newest generation. Your eSIM connects to the strongest partner network where you are, so you get the available signal without changing settings.
Buy a plan and you get a QR code by email in minutes. Install the eSIM on Wi-Fi before your flight. Your days start when the eSIM first connects in Vietnam. If data does not start, turn on data roaming for the eSIM line.
Yes, you can add data to the same eSIM online without a new QR code. Plan sizes include 1, 2, 3 and 5 GB, and lengths are 7, 15 and 30 days.
Network list from our live supplier data. Networks are chosen automatically for the best signal and can vary by location and over time. All countries →