Apple Watch Series 11 vs. Ultra 3 Buyer's Guide: 30+ Differences Compared

The Apple Watch Series 11 and Ultra 3 are among the latest additions to the Apple Watch lineup, so how do they compare?

Apple Watch Ultra 2 vs Series 10 Buyers Guide
Both the Apple Watch Series 11 and the Apple Watch Ultra 3 feature hypertension detection, Sleep Score, sleep apnea detection, speaker playback, an Always-On Retina display, IP6X dust resistance, and more, but there are still significant differences between the two devices. The Apple Watch Ultra focuses on withstanding extreme environments, a high level of durability, extended battery life, and additional features to aid activities like diving and exploration.

With as little as $50 between the 46mm titanium Apple Watch Series 11 and the Apple Watch Ultra, some prospective customers will be weighing up whether it is worth spending a little extra to get the 49mm Ultra model. While there is a $400 difference between the GPS-only 42mm aluminum Apple Watch Series 11 and the Apple Watch Ultra, the high-end model offers a set of features to address specific challenges, so it may even be worth it for some of these buyers.

Apple Watch Series 11 ‌Apple Watch Ultra 3‌
Rounded design with a thinner casing, display with rounded edges and a wider aspect ratio Same design as first-generation Apple Watch Ultra
Anodized or polished aluminum and polished titanium casing options Blasted titanium casing
42mm and 46mm casing size options (vertical) 49mm casing size (vertical)
9.7mm thickness 14.4mm thickness
Weighs 29.3 grams to 41.7 grams depending on casing size and material Weighs 61.4 grams
Front crystal curves at edges onto shaped casing Corrosion resistant case with raised edges to protect the flat sapphire front crystal
Aluminum: Ion-X front glass
Titanium: Sapphire crystal front glass
Sapphire crystal front glass
Curved display with refractive edge Flat display
42mm: 1.79-inch display
46mm: 1.99-inch display
2.04-inch display
42mm: 374 by 446 pixel display
46mm: 416 by 496 pixel display
422 by 514 pixel display
42mm: 989 sq mm display area
46mm: 1,220 sq mm display area
1,245 sq mm display area
Exclusive Wayfinder and Modular Ultra faces
Night Mode for low-visibility conditions
Customizable Action button
86-decibel Siren to attract attention
Single speaker Dual speakers
Single microphone with voice isolation Triple-microphone array with beamforming and wind noise mitigation
Aluminum: Wi-fi only and cellular connectivity options
Titanium: Cellular connectivity
Cellular connectivity
Satellite connectivity
Emergency SOS via satellite
GPS (L1) Precision dual-frequency GPS (L1 and L5)
Water resistant to 50m Water resistant to 100m
Swimproof to 6m Swimproof and recreational scuba dive to 40m
Tested to MIL-STD 810H
EN13319 certification
Always-on altimeter Always-on altimeter with expanded operating range from –500m to 9000m
1.245–1.403 watt-hour battery 2.313 watt-hour battery
Up to 24 hours normal battery life Up to 42 hours normal battery life
Up to 38 hours battery life in Low Power Mode Up to 72 hours battery life in Low Power Mode
Charge 0–80% in about 30 minutes Charge 0–80% in about 45 minutes
Aluminum: Available in anodized Silver, Space Gray, and Rose Gold, and polished Jet Black finishes
Titanium: Available in polished Gold, Slate, and Natural finishes
Natural Titanium or Black Titanium finish
Aluminum: Starts at $399
Titanium: Starts at $699
Starts at $799

The Apple Watch Ultra offers specific capabilities to address the requirements of those who need their Apple Watch to provide assistance in challenging environments. If you need a more durable Apple Watch with features like louder speakers, a more reliable GPS, better water resistance, and more, the Apple Watch Ultra is undoubtedly the best choice. The Apple Watch Ultra is clearly better equipped to handle tasks like hiking, diving, and navigation.

The Apple Watch Ultra is also biggest and most feature-rich Apple Watch option available, not to mention that the Ultra form factor offered the first major redesign of the device since its introduction in 2015. For technology enthusiasts, Apple Watch Ultra represents a way to get a new Apple Watch experience with top specifications in several key areas. Features like longer battery life and the Action button are also highly accessible, and will be beneficial to all users. As such, some customers may still be inclined to choose the ‌Apple Watch Ultra 3‌ over the Apple Watch Series 11, even if they do not need it for use in challenging environments.

As the largest Apple Watch model to date, the size of the Apple Watch Ultra will not be for everyone. If you already prefer the 42mm Apple Watch casing size, the Apple Watch Ultra may be far too large for you. If in doubt, it may be worth heading to an Apple Store and trying on the Apple Watch Ultra in person to get to grips with the size and determine if it is too big and bulky for you. It is worth noting that while the 46mm Apple Watch Series 11 has a display size that is very similar to that of the ‌Apple Watch Ultra 3‌, it is a much smaller device physically.

Similarly, the Apple Watch Ultra's look may not appeal to some buyers. One of the most important differences between the Apple Watch Series 11 and Ultra 3 is their designs, with the latter boasting a much chunkier, aggressive look with a flat display. The Apple Watch Series 11 has a much subtler appearance and is available in wider range of finishes, but which look you prefer is ultimately a matter of personal preference. If you prefer the idea of a polished finish and are looking for a more fashion-focused smartwatch that pairs well with premium bands, the more aggressive, rugged design of the Apple Watch Ultra may not be for you.

The Apple Watch Series 11 continues to be thinner, lighter, and cheaper than the Apple Watch Ultra. It also charges more quickly, but with a considerably shorter battery life.

If the Apple Watch Ultra is out of your price range but you still want to use your Apple Watch in challenging environments, it is worth bearing in mind that the Series 11 still offers a durable design with a strong front crystal, water resistance, and many of the Apple Watch Ultra's software features like waypoint marking.

The ‌Apple Watch Ultra 3‌ has a lot to offer, especially for the subset of users who can take advantage of all of its capabilities, so it is certainly worth considering when purchasing a new model, but the Apple Watch Series 11 is still a compelling all-around option that comes in at a lower price point with a subtler design.

Related Forum: Apple Watch

Popular Stories

Apple Logo Spotlight

Report: Apple to Launch These New Products in 2026

Sunday November 2, 2025 5:34 am PST by
Apple is planning to launch at least 15 new products in 2026, according to Bloomberg's Mark Gurman. Gurman outlined what to expect from Apple in 2026 in the latest edition of his "Power On" newsletter. He said the company is heading "into one of its most pivotal years in recent memory," with the rollout of major new Apple Intelligence features, intense regulatory pressure on the App Store,...
iOS 26

Apple Releases iOS 26.1 With Liquid Glass Toggle, Slide to Stop Alarm, New Apple Intelligence Languages and More

Monday November 3, 2025 1:11 pm PST by
Apple today released iOS 26.1, the first major update to the iOS 26 operating system that came out in September, iOS 26.1 comes over a month after iOS 26 launched. ‌iOS 26‌.1 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings > General >...
iOS 26

iOS 26.1 Available Now With These 8 New Features

Monday November 3, 2025 5:54 am PST by
Following more than a month of beta testing, Apple released iOS 26.1 on Monday, November 3. The update includes a handful of new features and changes, including the ability to adjust the look of Liquid Glass and more. Below, we outline iOS 26.1's key new features. Liquid Glass Toggle iOS 26.1 lets you choose your preferred look for Liquid Glass. In the Settings app, under Display...
Finder Siri Feature

Apple's New Siri Will Be Powered By Google Gemini

Wednesday November 5, 2025 11:57 am PST by
The smarter, more capable version of Siri that Apple is developing will be powered by Google Gemini, reports Bloomberg. Apple will pay Google approximately $1 billion per year for a 1.2 trillion parameter artificial intelligence model that was developed by Google. For context, parameters are a measure of how a model understands and responds to queries. More parameters generally means more...
Early Black Friday Deals 2

The Best Early Black Friday Apple Deals

Sunday November 2, 2025 10:04 am PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Apple Intelligence General Feature 2

New Version of Siri to 'Lean' on Google Gemini

Sunday November 2, 2025 6:06 am PST by
In his "Power On" newsletter, Bloomberg's Mark Gurman today provided an update on the status of Apple Intelligence and the plans for it in 2026. Apple is still planning to roll out its revamped version of Siri around March of next year. The release should be accompanied by the release of a new smart home display product with speaker-base and wall-mount options. A new Apple TV and HomePod...
HomePod mini and Apple TV

New Apple TV and HomePod Mini Likely Launching Soon

Sunday November 2, 2025 5:49 am PST by
A new Apple TV and HomePod mini could launch as soon as this month, Bloomberg's Mark Gurman today suggested. In today's "Power On" newsletter, Gurman said that Apple retail stores are planning an overnight refresh on the evening of November 11, where changes will be made after closing, such as refreshing displays and placing new products for the following day. The timing of the overnight...

Top Rated Comments

rukind2 Avatar
7 weeks ago
I’ve had series 3, series 6, and series 9. Stainless steel except for the series 9. Each had the glass separate from the body. I need more durability, SOS satellite, and a wider screen aspect. More battery life is always useful. At my age the little things count more than in the past.
Score: 2 Votes (Like | Disagree)
MallardDuck Avatar
7 weeks ago
I love my ultra 1, skipped the 2, but bought the 3. Wouldn't have done it without the O2 workaround though.
Score: 2 Votes (Like | Disagree)
Johnny907 Avatar
7 weeks ago

I was hoping they’d make some real changes in the Ultra 3 but they didn’t. Still the same.

It’s so thick that I can’t fit it under my suit cuffs and shirt.

Because of this I’m not buying one until it’s thinner.

Oh well, they can’t make us all happy.
Maybe No 4 will be 3-4 mm thinner.
It reminds me of my dive watch, which I love, but only wear when actually diving because it’s too large for day to day.
I like the idea of the Ultra series, but not enough to own one in tandem with a regular AW for when I’m not hiking or biking.
Score: 2 Votes (Like | Disagree)
jz0309 Avatar
7 weeks ago
I got my first Ultra when it was introduced 3 years ago, compared to my then S7 Ti, it was a steal.
and that still holds true compared to the top model 46mm it's a bargain.
Of course you got to like the size and looks of it and I understand not everyone does.
Score: 1 Votes (Like | Disagree)
AmpSkillz Avatar
7 weeks ago
Why do people keep listing hypertension detection, Sleep Score, sleep apnea detection as Apple Watch 11 and ultra 3 features? It a watchOS 26 feature that is available on multiple previous generations.

Also I’ve seen people say Watch 11 is a “big upgrade”… it’s the same exact watch as the 10 but slightly bigger battery and better scratch resistance. ??‍♂️ That is it and no it’s not thinner.
Score: 1 Votes (Like | Disagree)
svish Avatar
7 weeks ago
Good article. Somehow I prefer the design of the normal Series watch. But not going to upgrade from my Series 10. Very happy with it.
Score: 1 Votes (Like | Disagree)