eSIM It will dramatically change how you use your smartphone. Unlike Removable Subscriber ID Module (SIM) cards, eSIM is a permanent part of the phone that allows you to use two different numbers on the same device. You can also use eSIM to add cellular connectivity to your tablet, smartwatch or other device.
If you haven’t heard of eSIM, you won’t feel sick. Early techniques have worked for over a decade, but a few years ago they became available to the general public. Steve Jobs may have wanted to dump the physical card slot on the first iPhone, and rumors continue that Apple may launch an eSIM-only device in the near future.
A note on simple terms: The phrase “physical SIM” often refers to an old card removed from the side of a smartphone. eSIM is much smaller, but it doesn’t matter. The word “removable SIM” has a contrasting meaning and emphasizes the built-in quality of eSIM.
Can I use eSIM on my phone?
Is this technology available? Sadly, for those who have antiques like the iPhone 8, eSIM is only available on newer smartphone models. The iPhone XR to iPhone 12 have one eSIM built in, and the iPhone 13 model has two eSIMs built in. With the exception of Samsung Galaxy S20FE, the latest Samsung phones are eSIM compatible. Google smartphones released after Pixel 3 will work with eSIM unless you are using Verizon. If you are using Verizon, use Pixel 4 or later.
Unlike removable SIM cards, you need to unlock your smartphone to use eSIM. Consumer Reports has published a great article explaining how to unlock your smartphone from major carriers such as AT & T, T-Mobile and Verizon. Each mobile operator has a web page with step-by-step instructions on how to start eSIM after your phone is unlocked. Whether via AT & T, T-Mobile, Verizon, or another carrier, the activation process requires access to Wi-Fi or cellular data.
How to use two numbers with eSIM
Here’s how to enable two phone numbers on the same smartphone: First, you need to make sure that your device has two eSIMs, or a combination of one eSIM and one removable SIM. Next, you need to activate the secondary line and get ready. When you contact your mobile operator, you will be provided with a QR code or link to initiate eSIM activation. iPhone owners can follow the process outlined in this helpful video from Apple Support.
If you’re a tablet owner and are interested in cellular connectivity, Apple iPad (2021, 9th Generation), Apple iPad Air (2022, 5th Generation), and Microsoft Surface Pro 8 are eSIM compatible and WIRED’s best. Included in the list of tablets. Also, whether you’re using Samsung Galaxy Watch 4 or Apple Watch Series 7, both devices include eSIM with the option to activate.
An eSIM-connected smartphone can be used by business people who want to associate their work number and personal number on the same device. (Although it sounds like a late-night text message disaster recipe.) Overseas travelers may appreciate the ability to quickly move between paid services across national borders. A video describing the new technology as a “travel hack” has been talked about on TikTok.
For edge case users who switch between multiple devices, eSIM can be frustrating. Fortunately for you, we’re still years away from eSIM-only smartphones, the only option available for purchase. So you can grab those metal pokey sticks in your junk drawer without shyness. (Yo soybeans.)
For the vast majority of people who rarely think of a SIM card again after installation, converting to eSIM is also a wise decision from a privacy perspective. According to the Federal Communications Commission website, eSIM offers “significant security benefits.” With eSIM, you are protected from some of the SIM swap attacks that threaten your smartphone.