1. What is an eSIM?

eSIM (Embedded SIM) is a type of embedded SIM built into a phone, tablet, or smartwatch. Unlike a traditional physical SIM, an eSIM does not need to be removed or inserted; you only need to scan a QR code to activate mobile service.

With eSIM, users can sign up, activate, or change carriers directly on the device, without needing to visit a store. This is a new SIM trend that major brands such as Apple, Samsung, Google, Xiaomi and global carriers strongly support.

2. Benefits of eSIM

Compared with a physical SIM, eSIM offers many outstanding benefits:

  • 🔹 No need to remove a SIM: Activate easily with just a QR code, with no risk of damaging the SIM tray or losing it.

  • 🔹 Use multiple numbers on 1 devices: One phone can store multiple eSIMs — very convenient for people who travel internationally often.

  • 🔹 Switch carriers quickly: In just a few steps, you can change to another plan or carrier.

  • 🔹 Convenient for international travel: No need to buy a physical SIM, just buy an eSIM online at SimPM and scan the QR code to start using it as soon as you arrive.

  • 🔹 Eco-friendly: Eliminates plastic and waste from physical SIM cards.

3. How eSIM works

eSIM is built into the device. When a user buys an eSIM plan, the provider (such as SimPM) will send a QR code containing network configuration information. You only need to:

  1. Go to Settings → Mobile Data → Add eSIM

  2. Scan the QR code sent by email

  3. The eSIM will automatically activate when you arrive in the destination country

The whole process only takes a few minutes, with no need to remove the physical SIM or connect to a computer.

4. Can eSIM be used on all phones?

Not every phone supports eSIM. Popular models that do support it include:

  • iPhone: From iPhone XS, XR and later

  • Samsung: Galaxy S20, S21, S22, Z Flip, Z Fold…

  • Google Pixel: From Pixel 3 and later

  • Huawei, Xiaomi, Oppo, Vivo: Some high-end models are supported

👉 Before buying, you can check whether your device supports eSIM on the website SimPM.vn.

5. Where can you buy a reliable eSIM?

Currently, SimPM is one of the leading providers of reliable international eSIMs in Vietnam, with eSIM plans for more than 200 countries:

  • 🌏 eSIM for Singapore, Thailand, Japan, South Korea, the US, Europe, Australia…

  • ⚡ High speed 4G/5G, automatically activated upon arrival

  • 🕒 QR code sent by email within 5–10 minutes after payment

  • 💬 Vietnamese support 24/7 via Zalo, Telegram, Hotline

You can choose eSIM plans by day, by data allowance, or unlimited eSIM, suitable for all business and travel needs.

6. How to install eSIM on your phone

Step 1: Buy an eSIM at SimPM.vn
Step 2: Open the email containing the QR code
Step 3: On your phone → Go to Settings > Mobile > Add eSIM
Step 4: Scan the QR code and wait a few seconds for activation
Step 5: Turn on Data Roaming to use the Internet

That’s it — you can now access the global Internet without a physical SIM.

7. Conclusion

The eSIM technology is gradually replacing the traditional physical SIM, bringing a more convenient, faster, and more modern experience. If you travel frequently, go on business trips, or want to simplify SIM usage — eSIM SimPM is the optimal choice.