If you’ve ever landed in a new country and hunted for a SIM-card kiosk, an eSIM changes everything. It’s a digital SIM built into your phone: you buy a plan online, scan a QR code, and you’re connected the moment you land — no queues, no plastic, no roaming shock.
What does “eSIM” actually mean?
eSIM stands for embedded SIM: a small chip permanently inside your phone that can be programmed with a mobile plan over the internet. One phone can store several eSIM profiles and switch between them, so you keep your home number while adding local travel data.
How does an eSIM work, step by step?
- Buy a plan online for your destination — for example a CometSIM travel eSIM.
- Get a QR code by email within minutes of paying.
- Scan the QR code in your phone settings to install the profile.
- Turn the line on when you arrive and enable data roaming for that line.
The best part: do steps 1–3 at home over Wi‑Fi before you fly, then just switch the line on when you land.
eSIM vs a physical SIM
- No physical swap — nothing to lose or damage.
- Instant delivery by email, not by post.
- Keep your home number active for calls and texts.
- Buy before you travel and connect on arrival.
Does my phone support eSIM?
Most phones from 2019 onward do — iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy S and Z models. Check yours on our device compatibility page. If you see an “Add eSIM” option in mobile settings, you’re good to go.
Is an eSIM safe and reliable?
Yes. An eSIM runs on the same local networks a physical SIM uses, so coverage and speed are identical — and with no card to clone or steal, it’s arguably more secure.
Frequently asked questions
Do I need to remove my normal SIM?
No — keep it in; your home number stays active while the eSIM handles data.
When should I install it?
At home over Wi‑Fi before you fly, then turn the line on after you land.
Ready to try it on your next trip?
Pick your destination, pay online, and get your QR code in minutes.
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