iOS 27.3 Beta 1: 9 New Features and Should You Install It?

iOS 27.3 beta 1 is out. Apple released it to developers on November 3, 2026, a week after iOS 27.2. The headline change is the return of the redesigned Health app. There are also new Safari options, Siri AI in more languages and a new StandBy mode. Here’s what’s in it, based on reporting by 9to5Mac and MacRumors, and whether you should install it.

What’s New in iOS 27.3 Beta 1

According to 9to5Mac’s running list, these are the iPhone changes found in beta 1 so far:

• Redesigned Health app. It’s back in testing (see below).
• Safari: vertical tabs and adaptive dark mode.
• Siri AI in more languages: Traditional Chinese, Vietnamese, Turkish and Norwegian.
• Siri AI actions in apps: Siri can take actions in apps like Calendar, Journal, Messages and Music, and you can ask it what it can do in supported apps.
• New StandBy: on standard iPhone models, StandBy now works more like it does on iPhone Duo. You can set up several versions of the clock faces and swipe between them, with colors and complications similar to Apple Watch faces.
• Reachability on iPhone Duo: instead of pulling content down, it shifts content left or right so you can reach across the wide screen.
• Apple Music: a welcome screen highlights improved AutoMix, redesigned artist pages and concert suggestions based on what you listen to.
• Apple Fitness+: new Gym Strength workouts.
• Apple Watch: Siri Recap and Live Rewind can be tested with watchOS 27.3 beta paired with iOS 27.3 beta.

MacRumors also reports that the update brings Apple Intelligence to China, and says iOS 27.3 could add RCS support for the Australian carrier Telstra. One feature hasn’t come back yet. MacRumors notes Safari’s option to fix weak or compromised passwords still isn’t in this beta. 9to5Mac is still adding to its list, so more changes may turn up.

The Redesigned Health App Is Back

The biggest news in this beta is the Health app. Apple tested a redesigned Health app during the iOS 27.2 beta. Then, as 9to5Mac explains, it brought back the old app in beta 4, and iOS 27.2 shipped without the redesign. Now it’s back in testing.

9to5Mac says the redesign includes features like Health Age and the ability to schedule lab work through Quest Diagnostics. According to MacRumors, it also adds Apple Intelligence insights and guidance. Apple pulled it once before, so it could still change before the final release. 9to5Mac says Apple has signaled it will ship with iOS 27.3 before the end of the year.

Who Can Install It Right Now?

Developers got beta 1 on November 3. The public beta followed on November 5, two days later, as MacRumors reported. Anyone can join it for free through the Apple Beta Software Program. Sign in there with the same Apple Account you use on your iPhone. Then the beta shows up in Software Update (steps below). If you’re not in either program, you won’t see iOS 27.3 in Software Update, and that’s normal.

Seeing an update you didn’t expect, or none at all? See iOS update not showing and iPhone won’t update.

The beta only installs on iPhones that support iOS 27. Check yours with the iOS compatibility checker.

Should You Install the iOS 27.3 Beta?

For most people, no. Beta software is unfinished. Apps can crash, battery life can be worse and some features may not work. Apple’s own beta guide recommends installing betas on a device you don’t rely on every day.

• Install it if you’re a developer testing your apps, or you have a spare iPhone and want to try the new Health app early.
• Wait if it’s your only iPhone, you rely on banking, work or health apps, or you’re not comfortable restoring your iPhone from a computer.

Going back is hard work. Downgrading from a beta means erasing and restoring your iPhone with a computer, and a backup made on the beta won’t restore to the older iOS 27.2. If you just want fixes for current bugs, iOS 27.2.1 is the update to watch. See iOS 27.2 problems and fixes.

How to Install the Beta Safely

If you decide to try it, do it in this order:

1. Back up first. Make an iCloud backup, or better, an archived backup on a Mac or PC, so you can go back to iOS 27.2 if you need to.
2. Check you have space and battery. Plug in and join Wi-Fi. If storage is tight, see iPhone storage full.
3. Turn on beta updates. Go to Settings → General → Software Update → Beta Updates and choose iOS 27 Public Beta. That option appears once your Apple Account is signed up at beta.apple.com. Developers choose iOS 27 Developer Beta instead.
4. Download and install. Go back to Software Update and tap Update Now.
5. Give it a day or two. After any big update your iPhone re-indexes in the background, so it can feel slow or warm at first. See update finishing in background.

To stop getting betas later, go back to Beta Updates and choose Off. You’ll move to the next normal release when it comes out, without erasing your iPhone.

When Will iOS 27.3 Be Released?

Apple hasn’t announced a date for iOS 27.3. Both MacRumors and 9to5Mac expect it in December. 9to5Mac points out that Apple’s December updates landed between December 11 and 13 in each of the last five years, so it expects iOS 27.3 in the first half of December. That’s a prediction, not an Apple date. 9to5Mac also says Apple has signaled the new Health app will ship with iOS 27.3 before the end of 2026. We’ll update this page as new betas arrive.

Before then, Apple is expected to release iOS 27.2.1, a smaller bug-fix update. MacRumors and 9to5Mac report it’s already in testing. Not sure whether to update now? See should I update iOS.

Frequently Asked Questions

Is iOS 27.3 beta out?
Yes. Apple released beta 1 to developers on November 3, 2026, and the first public beta on November 5.

How do I get the iOS 27.3 public beta?
Sign up free at beta.apple.com with your Apple Account. Back up your iPhone, then go to Settings → General → Software Update → Beta Updates and choose iOS 27 Public Beta.

What’s new in the first iOS 27.3 beta?
The redesigned Health app returns, Safari gets vertical tabs and adaptive dark mode, Siri AI supports more languages, and StandBy gets new customizable clock faces.

Is the iOS 27.3 beta safe to install?
It’s test software, so expect some bugs. Install it on a spare device, not the iPhone you rely on, and back up first.

When is iOS 27.3 coming out?
Apple hasn’t given a date. MacRumors and 9to5Mac expect it in December, most likely in the first half of the month.

Can I go back to iOS 27.2 from the beta?
Yes, but you have to erase and restore your iPhone with a computer, and a backup made on the beta won’t restore to iOS 27.2.