A travel eSIM is the easiest way to stay online: buy before you go, install it on Wi-Fi, and switch it on when you land. You keep your home number for calls and texts.
Why it matters in Asia
- Ride-hailing apps such as Grab need data.
- Maps and translation apps are essential where English is limited.
- Regional plans cover several countries on one eSIM.
- In China, many travel eSIMs give access to apps restricted on local networks; check the provider's notes.
More details in our eSIM guide.