eSIM Installation Guide Vietnam – Fast & Easy Setup for 2025
Installing an eSIM in Vietnam is simple once you know the right steps. Whether you’re a first-time visitor, digital nomad, or long-term expat, this guide explains how to set up your Vietnam eSIM quickly, safely, and with confidence. By 2025, millions of travelers have already switched to eSIM for its convenience, flexibility, and reliable performance on Vietnam’s top networks like Viettel, MobiFone, and VinaPhone.
📘 What Is an eSIM?
An eSIM (Embedded SIM) is a small digital chip already built into your phone or smartwatch — no more physical cards to swap. It allows you to activate a local mobile plan simply by scanning a QR code. Once installed, you can use mobile data, calls, and texts instantly.
- Instant activation: No paperwork or SIM swapping required.
- Secure and remote: If your phone is lost, your eSIM can be deactivated remotely.
- Multiple profiles: Keep several operators on one device — perfect for frequent travelers.
🧭 Step 1: Check Device Compatibility
Most smartphones released after 2020 support eSIM. Here are the main compatible models:
- iPhone: XS, XR, 11, 12, 13, 14, 15 and later (all variants)
- Samsung: Galaxy S20–S24 series, Z Flip/Fold, Note 20+
- Google Pixel: Pixel 3 and newer
- Huawei / Oppo / Xiaomi: Flagship models from 2020 onwards
How to check: Go to Settings → Cellular (or Mobile Data). If you see “Add eSIM” or “Add Mobile Plan,” your device is ready.
Tip: Avoid grey-import devices — some may not support Vietnamese carrier eSIM activation.
🛒 Step 2: Choose Where to Buy
You can order an eSIM directly from trusted Vietnamese sources before your trip or after arrival:
- GoVnSIM – Ideal for travelers and expats; QR code sent instantly via email.
- Official carrier stores (Viettel, MobiFone, VinaPhone) – Suitable for long-term users or residents.
Always use official sources — avoid unverified Telegram or Facebook sellers, as many tourists report invalid or reused QR codes.
⚙️ Step 3: Prepare for Activation
- Connect to stable Wi-Fi before installing your eSIM.
- Keep your QR code email open on another device or printed copy.
- Ensure your phone has at least 30% battery.
- Back up contacts and key data before you begin.
📲 Step 4: Install eSIM on Your Device
- Open Settings → Cellular (iPhone) or Connections → SIM Manager (Android).
- Select Add eSIM or Add Mobile Plan.
- Scan the QR code you received by email.
- Follow on-screen prompts to complete installation.
- Restart your phone to register on the Vietnam network.
- Turn off Wi-Fi and browse a webpage to confirm 4G/5G connectivity.
Need help? See the detailed Vietnam eSIM Installation Guide for screenshots and extra troubleshooting steps.
⚡ Common Issues & Quick Fixes
- “Unable to complete installation”: Check Wi-Fi connection, restart, and rescan QR.
- “No Service” after install: Ensure your device is unlocked and compatible with local carriers.
- QR code expired or already used: Request a new one from your provider’s support team.
Example:
In Ho Chi Minh City, several travelers reported “No Service” errors due to carrier-locked iPhones. Once unlocked, their GoVnSIM eSIMs activated instantly and worked nationwide.
🧰 Advanced Troubleshooting
- Remove expired or inactive eSIM profiles before adding a new one.
- If “Add eSIM” is missing, update your device software and restart.
- Check that Airplane Mode is off, or reset your network settings if signal doesn’t appear.
💡 Useful Tips for Smooth Use
- Use Dual SIM Mode — keep your home SIM active for calls and SMS, while your Vietnam eSIM handles data.
- Pre-download travel apps like Grab, Zalo, and Google Maps before your trip.
- Keep a digital copy of your eSIM QR code for easy recovery if you switch devices.
- Need local OTP or call functions? Choose a plan with a Vietnamese phone number, such as Vietnam eSIM with Phone Number.
📊 eSIM vs Physical SIM in Vietnam
| Feature | eSIM | Physical SIM |
|---|---|---|
| Setup Time | 2–5 minutes, online | 10–30 minutes, in-store |
| Security | Remote deactivation | Replacement required if lost |
| Flexibility | Switch networks in seconds | Manual SIM swap |
| Compatibility | Recent devices only | All GSM phones |
| Environmental Impact | Plastic-free | Plastic waste |
🔎 FAQ – eSIM Installation in Vietnam
Can I install multiple eSIMs?
Yes, most phones support several profiles, but only one can be active at a time.
What if I delete my eSIM?
Keep your QR code email. If deleted, request a resend from GoVnSIM — replacement QR delivery usually takes under 30 minutes.
Does it work outside major cities?
Yes, eSIMs from major Vietnamese networks work across rural and island regions including Sapa, Ha Giang, and Phu Quoc.
Can I use my eSIM with my home SIM?
Yes, simply choose which SIM handles data in your settings menu.
📣 Plan Your Connectivity
Before arrival, explore practical packages in the Vietnam eSIM 30 Days Guide to match your stay length and usage.
For travelers heading to mountainous or less-connected regions, the Viettel eSIM for Tourists ensures the most stable 4G/5G coverage nationwide.
Support: WhatsApp +84 98 307 49 15 · LINE anyaxiaoying · Email info@govnsim.com
Part of Heera Travel Group – Explore more Vietnam tours at HeeraTravel.com.