eSIM guides

How eSIM works, how to install it, how much data to take on a trip and what happens to your number.

What is an eSIM and how does it work when you travel
An eSIM is a SIM card you never insert. You download it with a QR code, and a couple of minutes later your phone has a second line for mobile data.
How to install an eSIM on iPhone
It takes a couple of minutes. Install at home on Wi-Fi and switch the eSIM on for data once you're there.
How to install an eSIM on Android: Samsung, Pixel, Xiaomi
On Android you add an eSIM in the SIM settings. Menu names vary by brand, so here are the paths for the most common ones.
eSIM or roaming: which to pick for a trip
Short answer: for mobile data abroad an eSIM is usually easier and cheaper than roaming, and your number still gets calls and texts.
How much data do you need for a trip
For a week of maps, messaging and email, 3 GB is usually enough. If you watch a lot of video and social media, go for 10 GB or more.
How to keep your number and get bank texts abroad
A data eSIM doesn't replace your SIM card. Your number stays in the phone and bank codes keep arriving as usual.