eSIM
An eSIM is a SIM card built directly into your phone, with no physical chip to insert or remove. It's activated with a QR code or through your carrier's app.
- What it is
- A SIM with no physical chip
- Since
- 2016 (standard) · 2018 (iPhone)
- Verdict
- Yes, but…
What it is
The eSIM (embedded SIM) does the same job as a physical SIM card, but the chip is soldered inside the phone. Instead of inserting a card, your carrier sends you a digital profile, usually through a QR code or their app, and the phone installs it. You can store several eSIMs and have several active numbers on the same phone.
The upside versus physical-card SIM swapping is that nobody can pull the eSIM out of your phone: there's no chip to steal. But the risk shifts: to move it to another phone, or to recover it if yours breaks, you depend on your carrier's process, which may only ask for your identity, without needing the old phone.
When it was introduced
The GSMA, the association that represents mobile carriers, published the first specification for remote eSIM activation on watches, tablets and other consumer devices in February 2016. Samsung brought the eSIM to a watch (Gear S2 3G) that same year; Apple added it to the iPhone with the iPhone XS, XS Max and XR, unveiled in September 2018, and Google with the Pixel 2 in 2017.
Why it's used
It lets you switch carriers or get a travel line without touching anything physical, and it stops anyone from pulling the card out of a stolen phone. For manufacturers, it also frees up space inside the phone.
The flip side: if you lose your phone or it breaks, getting your number back on another device depends entirely on your carrier knowing how to transfer or reissue that eSIM remotely, and each company does it differently.
Should you use it?
Use it, but know ahead of time how to recover it without your phone. Don't find out the day your phone is gone.
Check this
- Do you know what to do with your carrier if your phone with an eSIM breaks or is lost?
- Does your carrier let you reissue the eSIM from their app, or do you have to visit a store?
Official sources: GSMA statement on the eSIM standard