Trusted Reviews is supported by its audience. If you purchase through links on our site, we may earn a commission. Learn more.

iOS 12.1 beta adds a headline iPhone XS feature, but you can’t use it yet

Apple has released the first beta for iOS 12.1, which enables the eSIM within the new iPhone XS and iPhone XS Max handsets. Once supported by carriers, the feature will enable dual line functionality on the 2018 smartphones.

With one line handled by the nano SIM sitting within the requisite tray, iPhone XS and XS Max users will be able to add an additional phone number on a singular iPhone. The tiny embedded SIM could be ideal for iPhone users who travel a lot, or wish to combine their work and business numbers on a single smartphone.

The eIM built into the new devices has previously appeared within selected Apple Watch and iPad models, enabling cellular connectivity without the need to manually insert a SIM card from a mobile network.

Once the beta is installed, users can head over to Settings > Cellular > Add Cellular Plan to access the eSIM set up process, which is usually handled by scanning a QR code provided by the network itself.

Related: iPhone XS vs iPhone X

From there users will be able to select their primary and secondary numbers for making and receiving phone calls and messages and assigning contacts. Whichever number receives the call will automatically become the active line.

However, it may be a while before all users can take advantage of the functionality. Although lots of networks plan to support the eSIM, it may not be available until the full version of iOS 12.1 rolls out to all users.

Related: What is an eSIM?

In the UK, EE and Vodafone have committed to supporting the eSIM compatibility with the iPhone XS and XS Max. In the United States, T-Mobile, AT&T and Verizon are on board. It doesn’t appear as if any of those carriers have turned on the functionality as yet.

Is the presence of the eSIM enough to convince you to upgrade your current iPhone? Drop us a line @TrustedReviews on Twitter.

Why trust our journalism?

Founded in 2003, Trusted Reviews exists to give our readers thorough, unbiased and independent advice on what to buy.

Today, we have millions of users a month from around the world, and assess more than 1,000 products a year.

author icon

Editorial independence

Editorial independence means being able to give an unbiased verdict about a product or company, with the avoidance of conflicts of interest. To ensure this is possible, every member of the editorial staff follows a clear code of conduct.

author icon

Professional conduct

We also expect our journalists to follow clear ethical standards in their work. Our staff members must strive for honesty and accuracy in everything they do. We follow the IPSO Editors’ code of practice to underpin these standards.

Trusted Reviews Logo

Sign up to our newsletter

Get the best of Trusted Reviews delivered right to your inbox.

This is a test error message with some extra words