Viettel eSIM by Vietnamesim.com

Viettel eSIM for Vietnam

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  • 🔥 Enter code GIGADIFF15 at checkout for an instant 15% OFF on the occasion of Da Nang International Fireworks Festival (DIFF) 2026!
  • Data: 5GB/day
  • Validity: 7/15/30 days
  • Network: Viettel
  • Phone number: No
  • Delivery time: Immediate, after order checkout
  • Delivery: Via registered email
  • Validity start: When the eSIM is installed on the device
  • Hotspot/Tethering: Yes
  • NOTE: The eSIM must be purchased no more than 30 days before the intended date of use.

$10.90 – $19.90

$10.90
$13.90
$19.90

Viettel eSIM – 5G/4G Data from Top #1 Network

Auto-Renews Every 24 Hours

Explore Vietnam with confidence using the Viettel eSIM – your reliable companion for high-speed mobile data, powered by Vietnam’s top 1 network – Viettel. Whether you’re cruising Ha Long Bay or wandering city streets, stay connected without the hassle.
  • We are Viettel’s strategic partner, ensuring you get the best plans with no roaming fees and full local performance.
  • Widest 4G/5G coverage in Vietnam
  • Experience real-time speeds of 30–90 Mbps – Fastest in Vietnam, top 3 in the world.
  • No need to worry about topping up.

Why choose Viettel eSIM?

Viettel isn’t just Vietnam’s #1 mobile network — it ranks among the TOP 3 FASTEST mobile networks globally, according to Speedtest’s Global Speed Score (by Ookla). With a speed score of 82.56, Viettel outperforms major providers like Singtel (Singapore), SK Telecom (South Korea), and Telia (Denmark).
Speedtest Viettel Vietnam top 3 the world by Ookla

What you can expect

#1 Network speed

Enjoy the real-time tested, fastest data speed from Vietnam’s top 1 network.

Instant activation

Get your mobile data working in just a few minutes.

Keep number

Continue using your current number while enjoying our eSIM data.

Zero roaming fees

Everything paid upfront, zero hidden fees or roaming costs.

Viettel eSIM coverage in Vietnam

Coverage quality depends on terrain an distance from signal towers. In Vietnam, Viettel is widely recognized as the network with the broadest and most stable coverage, especially when your itinerary includes Ha Giang, Sapa, Phu Quoc, rural stops, long road trips or other smaller provinces.

Major cities (Hanoi, Ho Chi Minh City, Da Nang):

  • Viettel: Excellent 5G/4G stability
  • Others: Strong

Remote & Mountainous Areas (Ha Giang, Sapa, Cao Bang):

  • Viettel: Best-in-class. Most reliable connection for trekking and remote exploration.
  • Vinaphone/MobiFone: Limited or unstable in deep valleys. 

Coastal & island regions (Phu Quoc, Cat Ba, Ha Long Bay):

  • Viettel: Strong and consistent, even on cruise ships.
  • Others: Good for common travel areas
Phu Quoc eSIM offers high-speed data

Not sure if this is the right plan for you?

Every traveler has different needs. Whether you need a number, a different local carrier or a multi-country plan, we have dozens of other options waiting for you. Check out our full collection to find the best value for your specific itinerary.

Explore all Vietnam eSIM plans!

How it works

Effortless eSIM activation awaits – prepare to explore Vietnam with confidence!!
Step 1 - Buy plan for Hanoi eSIM

Step 1

Choose your plan

Browse our travel data plans, pick the perfect option and place an order.

Step 2

Scan QR code

Receive the QR code and user guide via email (instantly). Simply scan to activate.

Step 3 - Enjoy Internet with Hanoi eSIM

Step 3

You’re all set!

Enjoy unlimited access through our fast and reliable network.

Things to know

Data service

Your Viettel eSIM provides data only but you can make calls and text via WhatsApp, Skype, Messengers, etc. using mobile data from the eSIM.

Check compatibility

Verify your phone supports eSIM and is unlocked. Check our eSIM compatibility list before purchasing.

Activation time

Your plan activates immediately after installation, so install it just before departure or upon arrival in Vietnam.

30-day activation

Activate your data plan within 30 days of purchase. No cancellations, refunds, or changes after this period.

One-time scan

Each QR code works only once – never delete your eSIM during use. Contact [email protected] or +1 657-571-1199 if you need help.

Frequently asked questions

If you still have questions about this service? We are here to help

Do I need a passport to buy the Viettel eSIM?
It is not necessary to show your passport when buying eSIMs at vietnamesim.com.

Your data plan will start as soon as you install it on your phone. It is recommended for you to scan and activate your eSIM right before your departure date so you will be connected after landing.
When you install your eSIM, the number of the days will start to count down. If you are not in the country that the eSIM covers, you cannot access the data and will not lose any data in the plan.

Install the evening before departure or on arrival in Vietnam with free Wi-Fi.

You can check your Vietnam Viettel eSIM data balance by texting KTTK to 191. The response message will let you know your remaining data. However, it will be in Vietnamese.

It will be reset at 23:59 in a natural day, Vietnam time (GMT+7).

Install the eSIM with the QR code sent to your email. In the mobile settings, select it as the default mobile data, turn on data roaming and mobile data. Then, your eSIM will work. Read more in our eSIM installation guide.

Yes, Viettel eSIM plans include hotspot feature for sharing data with other devices.

After you place your order, we will send an email with your eSIM information, including QR code, confirmation code and activation guide within 3-10 minutes. Just scan the QR code and follow the user guide.

Our Viettel eSIM is a one-time-use eSIM. After being activated, it will be ready for you to use until the expired date or when daily data runs out. If you remove eSIM from your phone, you will not be able to use it once again.

We provide 24/7 customer support via WhatsApp (+1 657-571-1199) and email to promptly resolve any connectivity issues throughout your Vietnam journey.

No, the eSIM is data-only, but you can make calls using apps like WhatsApp, Messenger, Skype, etc. through mobile data of the eSIM.

No. When your daily high-speed data is used up, your mobile data will stop until its reset time.

Yes. Set your primary SIM for calls/SMS, and the eSIM for mobile data only.

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