Apple Watch Ultra Teardown Reveals Larger Battery, Improved Water Resistance, and More

iFixit today shared an Apple Watch Ultra teardown post and video, providing a closer look at the watch's internal design and components.


While the Apple Watch Ultra has four exposed pentalobe screws on the back case for quick access to the inside of the watch, iFixit said the device remains challenging to repair. For example, after removing the back case, iFixit said a gasket contributing to the Apple Watch Ultra's water resistance was immediately broken. In addition, accessing parts like the battery and Taptic Engine requires the difficult task of removing the display.

In line with a previous report, the teardown confirms that the Apple Watch Ultra is equipped with a 542 mAh battery, which is 76% larger than the Apple Watch Series 8's 308 mAh battery also shown. The teardown also provides a closer look at the Ultra's significantly larger speaker, which reviews said results in louder phone calls.

Apple Watch Ultra launched on Friday. Priced at $799, the high-end watch features a rugged design with a 49mm titanium case, a flat display, outdoors-themed bands, water resistance up to a depth of 100 meters, a customizable bright orange "Action" button, up to 60 hours of battery life with an upcoming low power setting, and more.

Related Roundup: Apple Watch Ultra 2
Related Forum: Apple Watch

Popular Stories

iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

iPhone 17 Pro Launching Later This Year With These 12 New Features

Sunday April 13, 2025 7:52 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Apple 2025 Thumb 1

10 Products Still Coming From Apple in 2025

Friday April 11, 2025 4:14 pm PDT by
Apple may have updated several iPads and Macs late last year and early this year, but there are still multiple new devices that we're looking forward to seeing in 2025. Most will come in September or October, but there could be a few surprises before then. We've rounded up a list of everything that we're still waiting to see from Apple in 2025. iPhone 17, 17 Air, and 17 Pro - We get...
Foldable iPhone 2023 Feature Homescreen

Foldable iPhone Resolutions Leak With Under-Screen Camera Tipped

Monday April 14, 2025 3:12 am PDT by
Apple's upcoming foldable iPhone (or "iPhone Fold") will feature two screens as part of its book-style design, and a Chinese leaker claims to know the resolutions for both of them. According to the Weibo-based account Digital Chat Station, the inner display, which is approximately 7.76 inches, will use a 2,713 x 1,920 resolution and feature "under-screen camera technology." Meanwhile, the...
iPad Pro iPadOS

iPadOS 19 Will Be 'More Like macOS' in Three Ways

Sunday April 13, 2025 6:43 am PDT by
A common complaint about the iPad Pro is that the iPadOS software platform fails to fully take advantage of the device's powerful hardware. That could soon change. Bloomberg's Mark Gurman today said that iPadOS 19 will be "more like macOS." Gurman said that iPadOS 19 will be "more like a Mac" in three ways:Improved productivity Improved multitasking Improved app window management...
M6 MacBook Pro Feature 1

Waiting for the Perfect MacBook Pro? 2026 Might Be the Year

Thursday April 10, 2025 4:19 am PDT by
Apple in October 2024 overhauled its 14-inch and 16-inch MacBook Pro models, adding M4, M4 Pro, and M4 Max chips, Thunderbolt 5 ports on higher-end models, display changes, and more. That's quite a lot of updates in one go, but if you think this means a further major refresh for the MacBook Pro is now several years away, think again. Bloomberg's Mark Gurman has said he expects only a small...
Apple Vision Pro with battery Feature Blue Magenta

Vision Pro 2 Rumored to Have Two Key Advantages Over Current Model

Sunday April 13, 2025 7:15 am PDT by
Apple is working on a new version of the Vision Pro with two key advantages over the current model, according to Bloomberg's Mark Gurman. Specifically, in his Power On newsletter today, Gurman said Apple is developing a new headset that is both lighter and less expensive than the current Vision Pro, which starts at $3,499 in the U.S. and weighs up to 1.5 pounds. Gurman said Apple is also...
Beyond iPhone 13 Better Triad

Apple's 20th Anniversary iPhone May Finally Go All Screen

Tuesday April 15, 2025 6:31 am PDT by
Apple is preparing a "bold" new iPhone Pro model for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. As part of what's being described as a "major shake-up," Apple is said to be developing a design that makes more extensive use of glass – and this could point directly to the display itself. Here's the case for Apple releasing a truly all-screen iPhone with no...
maxresdefault

The MacRumors Show: New iOS 19, iPhone 17, and Apple Watch Ultra 3 Leaks

Friday April 11, 2025 7:13 am PDT by
On this week's episode of The MacRumors Show, we catch up on the latest iOS 19 and watchOS 12 rumors, upcoming devices, and more. Subscribe to The MacRumors Show YouTube channel for more videos Detailed new renders from leaker Jon Prosser claim to provide the best look yet at the complete redesign rumored to arrive in iOS 19, showing more rounded elements, lighting effects, translucency, and...
top stories 2025 04 12

Top Stories: iOS 19 and iPhone 17 Pro Rumors, Siri Revamp Turmoil, and More

Saturday April 12, 2025 6:00 am PDT by
It was a big week for leaks and rumors in the Apple world, with fresh claims about iOS 19, the iPhone 17 Pro, and even the 20th anniversary iPhone coming a couple of years from now. Sources also spilled the tea on the inner turmoil at Apple around the Apple Intelligence-driven Siri revamp that has seen significant delays, so read on below for all the details on these stories and more! iOS ...

Top Rated Comments

BobSc Avatar
33 months ago

Sadly looks like this might be the worst watch yet re: battery replacement. $400/year, then to the landfill. Oh well, I am sticking with my $16 Casio (whose battery is easily replaced using rear case screws), and my Luddite approach to sports/fitness.
Two cans and string can replace your iPhone.
Score: 31 Votes (Like | Disagree)
ufomism Avatar
33 months ago
This guy is clueless lol. Calls GPS on Apple Watches “abysmal”, doesn’t understand how the siren works, and worst of all damages the screen by prying it open with metal tool and not using suction cups, then blames it on the watch.
Score: 28 Votes (Like | Disagree)
jarman92 Avatar
33 months ago
This guy is the worst. His obnoxious digs at Apple are very distracting and often completely wrong. They should bring back the cute dorky guy with the long hair.
Score: 12 Votes (Like | Disagree)
henrikhelmers Avatar
33 months ago

Sadly looks like this might be the worst watch yet re: battery replacement. $400/year, then to the landfill.
I think this is the wrong take. The larger battery means the watch will experience fewer charge cycles, and less time at those high and low states that lithium batteries don’t like. There is also the better battery management added in recent years.

There is a good chance the Ultra will still perform well in 4 years.
Score: 11 Votes (Like | Disagree)
dohspc Avatar
33 months ago
The battery is very good on Ultra. Before I would be down to 20-30% after a 75 min workout outside streaming music on cellular on AW7 and I started at 100%. Now on Ultra I have around 75% remaining starting at 100%. The watch is twice as heavy though lol.
Score: 11 Votes (Like | Disagree)
no_idea Avatar
33 months ago
It will be great when this thing evolves over the years to go more than a week on a single charge. I’m hoping apple will be pushing for that long term
Score: 9 Votes (Like | Disagree)