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China Thailand Vietnam Cambodia eSIM by Vietnamesim.com

China Thailand Vietnam Cambodia eSIM

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

Price range: $16.50 through $94.50

Multi-Country eSIM: China, Thailand, Vietnam & Cambodia

Daily Data Auto Renewal 24 Hours – Seamless Cross-Border Connectivity

Stay connected across four of Asia’s most iconic destinations — China, Thailand, Vietnam, and Cambodia — with our China Thailand Vietnam Cambodia eSIM. Whether you’re navigating the Great Wall, enjoying the beaches of Thailand, exploring Vietnam’s bustling cities, or visiting Angkor Wat, this eSIM ensures you have reliable mobile data every step of the way.

  • Powered by top networks in both countries: China Unicom, Truemove H, Viettel, Vinaphone-VNPT, MobiFone, CamGSM.
  • High-speed 5G/4G/LTE data refreshed daily.
  • Works in China, Thailand, Vietnam, Cambodia, and up to 14 Asian countries total.
  • Perfect for multi-country travelers, backpackers, business travelers, or digital nomads exploring East and Southeast Asia..
Vietnam - China eSIM offers high-speed fixed data for travelers

What you can expect

Multi-country data access

Enjoy seamless connectivity as you travel between four countries – 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.

China Thailand Cambodia Vietnam eSIM offers high-speed data

One eSIM – Four Countries – Unlimited Possibilities

Whether you’re crossing the border from Thailand into Cambodia, flying between Hanoi and Beijing, or heading from the temples of Angkor to the lantern-lit streets of Hoi An — this eSIM has you covered.
Skip the hassle of buying multiple SIM cards. Enjoy uninterrupted data across borders with China Thailand Vietnam Cambodia eSIM — your all-in-one travel connectivity solution.
Discover more eSIM plans for Vietnam!

How it works

Your cross-border connectivity awaits – prepare for an unforgettable Vietnam-China 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 across China, Thailand, Vietnam, Cambodia, and more.

Things to know

Data service

This is a data-only eSIM, no phone number is included. Use messaging apps like WhatsApp, Zalo, WeChat, or Telegram for calls and texting.

Check compatibility

Make sure your phone is eSIM-compatible and unlocked. Check our eSIM compatibility list before purchasing.

Activation time

Your plan activates once installed and connected to a supported network. We recommend installing it just before departure or upon arrival.

30-day activation

Activate your data plan within 30 days of purchase. Your total data allowance is available throughout this entire period. No cancellations, refunds, or changes after activation.

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 China Thailand Vietnam Cambodia eSIM?
No, you don’t. Purchasing through vietnamesim.com requires no ID verification.
It starts as soon as you install it and connect to a supported network in China, Thailand, Vietnam, or Cambodia.
Once activated, the validity countdown (e.g., 3, 5, 7, 10, 15, or 30 days) begins, and your total data allowance becomes available. The plan works seamlessly as you travel between both countries.

Install just before departure or upon arrival using Wi-Fi. Your plan activates when you connect to a supported network.

Yes, absolutely. Your total data allowance works in both countries without any restrictions. Cross borders freely without worrying about connectivity or separate data pools.

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

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

Yes, the Vietnam – China eSIM includes VPN pass so you can access popular blocked websites and apps in China like Google, YouTube, Instagram,… using it.

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

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