Thailand Cambodia Vietnam eSIM by Vietnamesim.com

Thailand Cambodia Vietnam eSIM

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  • Data: Daily 500MB – Daily 1GB – Daily 2GB high-speed data 5G/4G/LTE
  • Validity: 8/12/15/30 days
  • Coverage: Thailand, Cambodia, Vietnam
  • Network operator: Truemove, CamGSM, Viettel, Vinaphone (VNPT), MobiFone
  • Phone number: No
  • Delivery: Immediate, via email, after order checkout
  • Hotspot/Tethering: Yes

$16.50 – $94.50

Secure payment guaranteed

Thailand Cambodia Vietnam eSIM – 5G/4G Data

Daily Data – Auto Renewal Every 24 Hours (GMT+8)

Experience seamless 5G/4G data across three Southeast Asian countries with our Thailand Cambodia Vietnam eSIM – from the golden temples of Bangkok to the ancient wonders of Angkor Wat and the vibrant streets of Hanoi. Your eSIM is delivered instantly via email and ready to activate in minutes. No physical SIM, no hassle. Powered by top networks in all three countries: Truemove – CamGSM – Viettel/Vinaphone/MobiFone.

  • Your plan renews automatically every 24 hours – no need to top-up for more data.
  • Seamless connectivity as you cross borders between three countries.
  • Perfect for multi-country tours, backpacking adventures, or business travel.

What you can expect

#1 Multi-Country Coverage

Enjoy seamless connectivity as you travel across Thailand, Cambodia, and Vietnam – no SIM swap.

Instant activation

Get your mobile data working in just a few minutes, ready for both countries.

Keep number

Continue using your current number while enjoying our eSIM data.

Zero roaming fees

Everything paid upfront, zero hidden fees or international roaming costs.

Thailand Cambodia Vietnam eSIM by Vietnamesim.com

Explore Thai, Cam & Viet with instant, reliable eSIM connectivity

Forget hunting for local SIM cards at every border crossing – travel seamlessly through Southeast Asia like a seasoned explorer!
Purchase your Thailand Cambodia Vietnam eSIM now! Skip the hassle of buying separate SIM cards in each country – land with data in Bangkok, stay connected as you cross into Siem Reap, explore Angkor Wat with navigation at your fingertips, then seamlessly continue to Ho Chi Minh City or Hanoi. With our Thailand-Cambodia-Vietnam eSIM, you’ll enjoy immediate activation, daily data that refreshes automatically, and the confidence of reliable coverage across all three nations.
Discover more eSIM plans for Vietnam!

How it works

Your tri-country connectivity awaits – prepare for an unforgettable Southeast Asian experience!
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 seamless access through fast and reliable networks in both Vietnam, Thailand, and Cambodia.

Things to know

Data service

Your eSIM Thailand – Cambodia – Vietnam provides daily data connectivity across all three countries with automatic network switching and daily renewal.

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 Thailand/Cambodia/Vietnam. The validity period starts when you first connect to a network.

30-day activation

Your plan activates immediately after installation, so install it just before departure or upon arrival in Thailand/Cambodia/Vietnam. The validity period starts when you first connect to a network.

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

Thailand-Cambodia-Vietnam eSIM?
It is not necessary to show your passport when buying eSIMs at vietnamesim.com.
Your Thailand-Cambodia-Vietnam eSIM plan starts as soon as you install it and connect to a network in any of the three countries (Thailand, Cambodia, or Vietnam). We recommend installing it right before your departure, so you’re connected immediately after landing.
Once activated, the validity countdown (e.g., 8, 12, 15, or 30 days) begins, and your daily data allowance becomes available. The plan works seamlessly as you travel across all three countries.

Install the evening before departure or on arrival at the airport (Bangkok, Siem Reap, Phnom Penh, Hanoi, Ho Chi Minh City) using free airport Wi-Fi.

Yes, absolutely. Your daily data allowance works in all three countries without any restrictions. Cross borders freely without worrying about connectivity.

Every day at midnight (GMT+8 / Beijing Time), your data allowance automatically resets to the full amount (500MB, 1GB, or 2GB depending on your plan). You don’t need to do anything – it happens automatically.

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, Thailand Cambodia Vietnam 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 Thailand-Cambodia-Vietnam eSIM is a one-time-use eSIM. After being activated, it will be ready for you to use until the expiration date. 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 during your adventure.

These plans are data-only. You can use data-based calling apps like WhatsApp, Skype, WeChat, or Zalo for voice calls.

Both countries offer high-speed 5G/4G connectivity. Actual speeds depend on network coverage in your specific location and network congestion.

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

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