eSIM basics
What is an eSIM? A simple guide to how it works
An eSIM is a digital SIM built into your smartphone. Instead of swapping a card, you add a mobile plan just by scanning a QR code.
How an eSIM works
A traditional SIM is a small card you insert. An eSIM instead writes a mobile profile onto a chip built into the device, so there is no physical card—you can buy online and install right away.
Why overseas eSIMs are convenient
You can add an overseas plan without removing your home SIM. No need to find a local SIM at the airport—set it up before departure and get online as soon as you arrive.
What it can and can't do
Bloomy eSIM plans are data-only. Use them for maps, messaging, SNS, ride-hailing and other internet apps. Voice calls and SMS via a phone number may not be supported.
Key points
- No physical card—set up with a QR code
- Add it while keeping your home SIM in place
- Data-only (voice/SMS may not be supported)
常見問題
任何手機都能用 eSIM 嗎？
It works on eSIM-compatible, unlocked devices. Please check compatibility before buying.
When should I set it up?
Install over Wi-Fi before departure, then turn on mobile data after you arrive.
