Vietnam eSIM with Phone Number: The Definitive Guide (2025)

Vietnam eSIM with phone number is the best solution for tourists, expats, and business travelers who need more than just data in Vietnam. With a real Vietnamese phone number, you can use all essential local services: Grab, Zalo, OTP banking, food delivery, calls, SMS, and app registrations. This complete guide will show you how to buy, activate, and use a Vietnam eSIM with phone number—plus key differences with data-only eSIM, customer experiences, and troubleshooting tips.

Why Use a Vietnam eSIM with Phone Number?

• Full access: Register Grab, Zalo, Shopee, MoMo, food delivery, and ride-hailing with a real local number.
• Receive SMS OTP for online banking, e-wallets, and secure logins.
• Make local and international calls, send/receive SMS.
• Perfect for long stays, business trips, students, and digital nomads.
• No need to swap SIM cards or lose your main WhatsApp/LINE number.

How to Buy Vietnam eSIM with Phone Number

1. Visit the trusted GoVnSIM shop: https://govnsim.com/shop/
2. Choose Viettel eSIM with phone number or Mobifone eSIM with phone number depending on your needs and area of use.
3. Complete payment and fill in passport info for legal activation (per Vietnam law).
4. Receive eSIM QR code and phone number via email (usually within 5–15 minutes).
5. Scan the QR code to install on your device. Done!

How to Activate eSIM with Phone Number in Vietnam

1. On your smartphone, go to Settings > Mobile Network > Add eSIM or Mobile Plan.
2. Scan the QR code received from GoVnSIM.
3. Wait for installation (~1 minute). Set your new eSIM as main for mobile data, calls, and SMS (if desired).
4. Restart device if needed. Your Vietnamese phone number is now ready to use for calls, SMS, data, and app registration.

Need help? See compatible devices here: List of eSIM Compatible Devices

Vietnam eSIM with Phone Number vs Data-Only eSIM

Viettel vs Mobifone eSIM with Phone Number

• Viettel eSIM: Best for rural coverage, business, and long-term stay. See details: Viettel eSIM Plan
• Mobifone eSIM: Great in cities and for students/expats who stay mainly in urban areas. Details here: Mobifone eSIM Plan

Registering Grab, Zalo, and Banking with Your Vietnam eSIM Phone Number

• Grab: Download the Grab app (official Grab), select Vietnam, enter your eSIM number, and receive OTP for instant registration and ride booking.
• Zalo: Download Zalo app (Zalo official site), create account with your new phone number, get OTP for verification, and start chatting with locals, joining groups.
• Banking & E-wallets: Link your eSIM phone number to your Vietnamese bank or e-wallet (MoMo, ZaloPay). OTP will be sent via SMS for every transaction and app login.
• Shopee, food delivery, Gojek: Use your eSIM number for all registrations, get OTP as a real local user.

Note: Many Vietnamese services REQUIRE a local phone number for registration and account verification.

See all eSIM options: GoVnSIM Shop

Read more about eSIM technology at GSMA eSIM Information.

How to Use Your Vietnam eSIM with Phone Number

• Set eSIM as primary for data, calls, and SMS if you want to use local features fully.
• Give your Vietnamese phone number to friends, hotels, banks, and for delivery services.
• Keep your original SIM in slot (dual SIM) for WhatsApp/LINE, use eSIM for all local needs.
• Top-up or extend plan easily via GoVnSIM shop or the provider’s app/website (see your eSIM details).

Troubleshooting Common eSIM Issues

• Not receiving SMS/OTP?
  • Make sure your eSIM is set as primary for SMS/calls.
  • Restart your device or toggle airplane mode.
  • Check plan includes SMS (data-only plans do not support OTP/SMS).
• eSIM not installing?
  • Check your device is compatible: Compatible devices list.
  • Connect to WiFi and scan QR code again.
  • If QR expired or lost, contact GoVnSIM via WhatsApp: +84 379569490
• No signal or data?
  • Select correct network (Viettel or Mobifone) in mobile settings.
  • Turn on data roaming.
  • Move to area with better coverage (rural/mountainous regions can be weak).

Real User Feedback: Vietnam eSIM with Phone Number

Jack W. (USA): “With a real phone number I registered Grab, got bank OTP, and connected to Zalo in 2 minutes. Way easier than airport SIM.”

Lisa K. (Germany): “Mobifone eSIM was perfect in Saigon. Fast data, local calls, and SMS for deliveries. No hassle with lost SIM cards.”

Amit S. (India): “Viettel eSIM worked everywhere—even in rural areas. Used my eSIM number for MoMo and all online services.”

FAQ: Vietnam eSIM with Phone Number

Is my phone compatible with Vietnam eSIM?

Most iPhones (XS, XR, 11, 12, 13, 14, SE 2020+), Samsung Galaxy S20+, Google Pixel, and some Xiaomi/OPPO devices support eSIM. Check: eSIM compatible devices.

Can I keep my number for the next visit?

If you top-up before expiry, you can keep your number active for future trips. Otherwise, a new number may be assigned on next purchase.

How to check eSIM balance?

For Viettel or Mobifone, dial *101# to check balance. See details: Balance check guide.

Is Vietnam eSIM with phone number safe for banking?

Yes, as secure as a normal SIM. Always keep your phone locked and never share OTP codes.

Why Choose Vietnam eSIM with Phone Number?

• Register any local app/service instantly (Grab, Zalo, MoMo, Shopee, banking…)
• Receive SMS, make local/international calls, use all delivery/ride-hailing services.
• No more physical SIM swapping or airport queues. Activate before or after landing!
• Support by GoVnSIM via WhatsApp (+84 379569490) and shop: https://govnsim.com/shop/

• Vietnam eSIM Shop (all plans)
• Viettel eSIM with Phone Number
• Mobifone eSIM with Phone Number
• How to Check eSIM Balance
• Learn about eSIM technology (GSMA)
• Grab Vietnam Official
• Zalo Official

Order Your Vietnam eSIM with Phone Number Now

Order now at GoVnSIM for instant delivery and dedicated support!
Contact on WhatsApp: +84 98 307 49 15