Apple Seeds Eighth Beta of New watchOS 4 Operating System to Developers - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Seeds Eighth Beta of New watchOS 4 Operating System to Developers

Apple today seeded the eighth beta of an upcoming watchOS 4 update to developers, one week after seeding the seventh beta and more than two months after introducing the watchOS 4 update at its 2017 Worldwide Developers Conference.

Once the proper configuration profile has been installed from the Apple Developer Center, the new watchOS 4 beta can be downloaded through the dedicated Apple Watch app on the iPhone by going to General --> Software update.

watchos 4 beta
To install the update, the Apple Watch needs to have at least 50 percent battery, it must be placed on the charger, and it has to be in range of the iPhone.

watchOS 4 introduces three new watch faces, including a dedicated Siri watch face that displays dynamic information unique to each individual and is perhaps the most significant new feature in the update. There are also new complications for Now Playing and Apple News, and an enhanced Workout app that supports High Intensity Interval Training and new swimming options.


GymKit, a new technology platform, will let the Apple Watch interface with gym equipment for workout data sharing purposes, and the Activity app will offer up intelligent coaching and tailored workout encouragement along with new monthly activity challenges.

Many other small tweaks and changes have been introduced, all of which are outlined in our dedicated watchOS 4 roundup.

watchOS 4 is only available to developers and will not be provided to public beta testers, so non-developers need to wait until the software sees an official release in the fall to try it out. With September approaching, we are nearing the end of the beta testing period.

Related Roundup: Apple Watch 12
Buyer's Guide: Apple Watch (Buy Now)
Related Forum: Apple Watch

Popular Stories

Surprise and Shine Live Coverage Article

Apple Event Live Blog: iPhone Duo, iPhone 18 Pro, and More

Wednesday September 9, 2026 9:10 am PDT by
Apple's "Surprise and Shine" event kicks off today at 10:00 a.m. Pacific Time, where we're expecting to see the foldable iPhone Duo, the iPhone 18 Pro and Pro Max, Apple Watch Series 12 and Ultra 4 models, new AirPods 5 earphones, and perhaps some other announcements. Apple is providing a live video stream on its website, on YouTube, and in the company's TV app across various platforms. We...
Apple Watch Ultra 2 Black Titanium

New Apple Watch Series 12 and Apple Watch Ultra 4 Features Revealed

Sunday August 30, 2026 7:54 am PDT by
Bloomberg's Mark Gurman today further outlined what to expect from the Apple Watch Series 12 and Apple Watch Ultra 4 set to be unveiled on September 9. While it was initially rumored that Touch ID may be coming to the Apple Watch this year, Gurman reiterated that he does not expect the Series 12 or Ultra 4 to have any major design changes compared to the current Series 11 and Ultra 3 models. ...
apple surprise and shine event

Apple Event Today: iPhone 18 Pro and iPhone Duo Cheat Sheet

Tuesday September 8, 2026 10:24 am PDT by
Apple's biggest event of the year is almost here, and all eyes are on Cupertino. With the first foldable iPhone expected to headline Apple's "Surprise and Shine" event on Wednesday, September 9, at 10:00 a.m. Pacific Time, the rumor mill has been running full throttle, fuelled by the biggest single design change in the life of the iPhone. To get you up to speed, here's a quick reference...

Top Rated Comments

CarlJ Avatar
118 months ago
I cannot wait to go on a customer business meeting and have Buzz showing up whenever I move my wrist!
If you feel that such watch faces are not appropriate to your business environment, they why on earth would you have switched to that watch face? The watch doesn't randomly change to different faces.
Score: 2 Votes (Like | Disagree)
118 months ago
Did they Add other faces??
I cannot wait to go on a customer business meeting and have Buzz showing up whenever I move my wrist!
Score: 2 Votes (Like | Disagree)
Wildkraut Avatar
118 months ago
How's the battery life? ;)
Score: 2 Votes (Like | Disagree)
jhfenton Avatar
118 months ago
Is anyone’s watch making a weird vibration/rattle with haptic alerts?
I can't speak for others, but my Apple Watch Series 2 is not.
[doublepost=1504058682][/doublepost]
Yes you do. Have you never done an Other workout and then named it afterwards? That's how all non-core workouts work.
I have not, but I was educated by the earlier discussion. I don't think I've ever used Other at all on WatchOS 4. I've used Running, Walking, Elliptical, and Rowing. (I use Gymaholic for weight training sessions rather than the Exercise App.) So prior to this discussion I didn't realize Other had this feature. It's nifty, even if I wouldn't never track bowling as a workout. ;)
Score: 1 Votes (Like | Disagree)
ErikGrim Avatar
118 months ago
I don't have bowling on my watch :(
Yes you do. Have you never done an Other workout and then named it afterwards? That's how all non-core workouts work.
Score: 1 Votes (Like | Disagree)
jhfenton Avatar
118 months ago
The battery life continues to improve for workouts. Last night, I ran 5 miles / 42 minutes and used only 17% battery (97%->80%) for GPS+AirPods+Polar H10-iPhone. That's definitely acceptable to me. It would allow for a 2h30m long run without my iPhone with plenty of margin for error.
Score: 1 Votes (Like | Disagree)

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors