Samsung Galaxy S21 Ultra picks up eSIM support with One UI 4.0 in the US

Samsung Galaxy S21 Ultra in Phantom Black
Samsung Galaxy S21 Ultra in Phantom Black (Image credit: Hayato Huseman / Android Central)

What you need to know

  • Samsung has pushed a new update to the Galaxy S21 Ultra with eSIM support.
  • The latest release is available on the flagship device running the Android 12-based One UI 4.0.
  • It is rolling out in phases to Samsung's flagship device.

Samsung has begun rolling out eSIM support to the Galaxy S21 Ultra running the Android 12-based One UI 4.0 in the U.S. The latest change appears to have quietly arrived on the flagship device, and it's presumably available on the other Galaxy S21 devices as well.

Android Central's Alex Dobie can confirm that the eSIM option is now live on his Galaxy S21 Ultra (U.S. version), as shown in the screenshot on the right. The feature doesn't come as a huge surprise, though, seeing as the Galaxy Note 20 Ultra picked up eSIM support from T-Mobile earlier this year alongside a security update.

Samsung Galaxy S21 Ultra Esim

Source: Alex Dobie / Android Central (Image credit: Source: Alex Dobie / Android Central)

The release coincides with today's rollout of the first One UI 4.0 beta to the Galaxy S21 series in the U.S. and Europe. The update introduces a host of improvements such as redesigned home screen widgets, enhanced dark mode, new charging effects, improved multitasking features, and privacy updates, among others.

There were rumors that circulated at least since earlier this year pointing to an eventual release of eSIM functionality to the Galaxy S21 devices, which didn't have that option at launch. Those rumors mentioned T-Mobile as one of the first carriers in the U.S. to support the feature on one of the best Samsung phones via a software update. That said, T-Mobile's support page (opens in new tab) doesn't mention the Galaxy S21 phones yet as among the devices with eSIM support.

It's worth noting that eSIM is mentioned in Samsung's FAQ page (opens in new tab) for the Galaxy S21 series. However, that feature has been unavailable on the U.S. version, that is, until now.

The eSIM option is already available on most Apple devices, starting with the 2018 iPhone models, so its release to Samsung's flagship handsets just makes sense, albeit a tad late. That said, you need to scan a QR code provided by your carrier to make use of eSIM. This means the functionality works only for a cellular plan, with no prepaid option.

If you're using the new One UI 4 beta, let us know if you've noticed this option on your Galaxy S21 and which model you own.

Samsung Galaxy S21 Ultra Render Phantom Silver Back Official

Samsung Galaxy S21 Ultra

The Samsung Galaxy S21 Ultra is one of the best Android phones you can buy right now, with four impressive cameras, a stunning display, and S Pen support. It's likely to pick up Android 12 in the coming months, and it now has more capabilities with the addition of eSIM support.

Jay Bonggolto
News Writer

Jay Bonggolto always keeps a nose for news. He has been writing about consumer tech and apps for as long as he can remember, and he has used a variety of Android phones since falling in love with Jelly Bean. Send him a direct message via Twitter or LinkedIn.

5 Comments
  • About time esim came to flagship galaxy phones in the U.S. question now is will U.S. carriers (AT&T and Verizon) support it?
  • I tried converting my T-Mobile SIM to eSIM after installing the beta and it does not work. It even tells me it will disconnect a non existent SIM card. Then I get an error about needing to call my carrier. S21 Ultra 5g T-Mobile branded but unlocked
  • I am using the eSIM on S21 Ultra for T-Mobile without any issues. Mine is a U1 model directly bought from the Samsung US website. Just talk with T-Force via Twitter and they should be able to get it done. If you want to do it yourself via website, it may cause error as the website is still not functioning properly for S21 eSIM as officially it has not been released. A beta release is not an official release from T-Mobile. Hope this helps.
  • I have U1 model and spent 3 hours yesterday getting t-mobile eSIM to work without luck. It is not working with this beta build.
  • I have been on phone with T-mobile for 3 hours. It's not working .
    I bought my phone from Samsung directly unlocked.