Q: When should I activate my eSIM?

We recommend installing your eSIM before you travel , ideally while you still have Wi-Fi access. However, do not turn on the data until you arrive at your destination. Steps: Install the eSIM before departure (while on Wi-Fi). Keep the eSIM data line turned OFF during your flight. Turn ON the eSIM data line when you arrive at your destination. Most plans start counting data from the moment the eSIM first connects to a local network. Installing early ensures you're ready to use data the moment you land.

Q: Can I use my eSIM and physical SIM at the same time?

Yes! Most eSIM-compatible devices support Dual SIM functionality, allowing you to use both your physical SIM and eSIM simultaneously. This means you can: Keep your home number active on the physical SIM for calls and texts. Use the eSIM for affordable local data while traveling. Receive calls and messages on your regular number while using eSIM data. Simply go to Settings > Cellular and configure which line to use for calls, messages, and data.

Q: Does the eSIM support phone calls and SMS?

Our travel eSIM plans are data-only . They do not include traditional voice calls or SMS. However, you can: Make voice and video calls using apps like WhatsApp, FaceTime, Skype, or Zoom. Send messages via WhatsApp, Telegram, iMessage, or other messaging apps. Keep your physical SIM active to receive regular calls and SMS on your home number. With modern messaging and calling apps, data-only eSIMs provide all the connectivity you need while traveling.

Question 1

How do I install my eSIM?

Accepted Answer

Follow these steps to install your eSIM:

Make sure your device is connected to Wi-Fi or mobile data.
Go to Settings > Cellular/Mobile Data > Add eSIM (or Add Cellular Plan).
Select "Use QR Code" and scan the QR code provided after purchase.
Follow the on-screen prompts to complete the installation.
Label your new plan (e.g., "Travel Data") and set it as preferred for data.

Your eSIM will be ready to use once activated. You can also enter the activation details manually if QR scanning is not possible.

Question 2

When should I activate my eSIM?

Accepted Answer

We recommend installing your eSIM before you travel, ideally while you still have Wi-Fi access. However, do not turn on the data until you arrive at your destination.

Steps:

Install the eSIM before departure (while on Wi-Fi).
Keep the eSIM data line turned OFF during your flight.
Turn ON the eSIM data line when you arrive at your destination.

Most plans start counting data from the moment the eSIM first connects to a local network. Installing early ensures you're ready to use data the moment you land.

Question 3

Can I use my eSIM and physical SIM at the same time?

Accepted Answer

Yes! Most eSIM-compatible devices support Dual SIM functionality, allowing you to use both your physical SIM and eSIM simultaneously. This means you can:

Keep your home number active on the physical SIM for calls and texts.
Use the eSIM for affordable local data while traveling.
Receive calls and messages on your regular number while using eSIM data.

Simply go to Settings > Cellular and configure which line to use for calls, messages, and data.

Question 4

How many eSIM profiles can I store on my device?

Accepted Answer

The number of eSIM profiles you can store depends on your device:

iPhone: Can store 8 or more eSIM profiles (iOS 16+), but only one can be active at a time alongside the physical SIM.
Samsung: Typically supports 5+ profiles.
Google Pixel: Supports multiple profiles.

You can delete old profiles and install new ones whenever needed. This makes it easy to keep eSIM profiles for countries you visit frequently.

Question 5

Does the eSIM support phone calls and SMS?

Accepted Answer

Our travel eSIM plans are data-only. They do not include traditional voice calls or SMS. However, you can:

Make voice and video calls using apps like WhatsApp, FaceTime, Skype, or Zoom.
Send messages via WhatsApp, Telegram, iMessage, or other messaging apps.
Keep your physical SIM active to receive regular calls and SMS on your home number.

With modern messaging and calling apps, data-only eSIMs provide all the connectivity you need while traveling.

Question 6

Can I top up or extend my eSIM data plan?

Accepted Answer

Yes, you can top up your eSIM plan if you run out of data or want to extend your usage period. Simply:

Open the app and go to your active eSIM.
Select a top-up package for the same destination.
Complete the purchase — additional data is added automatically.

Top-ups are applied to your existing eSIM profile, so there's no need to install a new QR code. Your remaining data (if any) is combined with the new package.

Question 7

What happens when my data runs out?

Accepted Answer

When your eSIM data is fully used:

Your data connection will stop, but you won't be charged extra automatically.
You can purchase a top-up to continue using data.
Your physical SIM remains functional for calls and texts.
You can connect to Wi-Fi networks to stay online.

We recommend monitoring your data usage through the app so you can top up before it runs out.

Vietnam

Data Plans

Plans

1.00 GB

1.00 GB

3.00 GB

3.00 GB

5.00 GB

3.00 GB

5.00 GB

5.00 GB

5.00 GB

10.00 GB

10.00 GB

20.00 GB

20.00 GB

30.00 GB

30.00 GB

50.00 GB

Unlimited

50.00 GB

Unlimited

Unlimited

100.00 GB

Daily Plans

Unlimited

Unlimited

Unlimited

Vietnam

Data Plans

Plans

1.00 GB

1.00 GB

3.00 GB

3.00 GB

5.00 GB

3.00 GB

5.00 GB

5.00 GB

5.00 GB

10.00 GB

10.00 GB

20.00 GB

20.00 GB

30.00 GB

30.00 GB

50.00 GB

Unlimited

50.00 GB

Unlimited

Unlimited

100.00 GB

Daily Plans

Unlimited

Unlimited

Unlimited