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

iOS 26 Battery Glass Feature

Apple Says Installing iOS 26 Might Impact Battery Life

Monday September 15, 2025 10:56 am PDT by
In the iOS 26 release notes, Apple is warning iPhone users that installing the new software might have a temporary impact on battery life, which is normal. A new support document explains that major iOS updates require background setup like indexing data and files for search, downloading new assets, and updating apps. Further, Apple says that new features could require more resources,...
AirPods Pro Firmware Feature

AirPods Pro 2 and AirPods 4 Get iOS 26 Features With New Firmware Update

Monday September 15, 2025 10:50 am PDT by
Apple today released updated firmware for the AirPods Pro 2 and the AirPods 4, introducing support for the new AirPods features that are included in iOS 26, iPadOS 26, and macOS Tahoe. The firmware has a build number of 8A356, and it replaces the current 7E93 firmware. With Apple's new software updates, the AirPods Pro 2 and the AirPods 4 support better audio quality for phone calls and...
iOS 26

iOS 26.1 to iOS 26.4: Here Are 5 New Features to Expect on Your iPhone

Tuesday September 16, 2025 11:17 am PDT by
iOS 26 was finally released on Monday, but the software train never stops, and the first developer beta of iOS 26.1 will likely be released soon. iOS 18.1 was an anomaly, as the first developer beta of that version was released in late July last year, to allow for early testing of Apple Intelligence features. The first betas of iOS 15.1, iOS 16.1, and iOS 17.1 were all released in the second ...
iOS 26 on Three iPhones

iOS 26's Liquid Glass Design Draws Criticism From Users

Wednesday September 17, 2025 2:56 pm PDT by
It's been two days since iOS 26 was released, and Apple's new Liquid Glass design is even more divisive than expected. Any major design change can create controversy as people get used to the new look, but the MacRumors forums, Reddit, Apple Support Communities, and social media sites seem to feature more criticism than praise as people discuss the update. Complaints There are a long...
Tim Cook Rainbow

Apple Reportedly Plans to Launch These 10 Products in 'Coming Months'

Sunday September 14, 2025 8:45 am PDT by
Apple's annual September event is now in the rearview mirror, with the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, Apple Watch Series 11, Apple Watch Ultra 3, Apple Watch SE 3, and AirPods Pro 3 set to launch this Friday, September 19. As always, there is more to come. In his Power On newsletter today, Bloomberg's Mark Gurman said Apple plans to release many products in the...
iOS 26 Glass Feature

iOS 26: The Top 100 New Features and Changes

Tuesday September 16, 2025 12:26 pm PDT by
Apple released iOS 26 on September 15, and it's now available for all iPhone users with a compatible device. There are a lot of changes and features to learn about, so if you want a quick, easy-to-read list that outlines what's new, we've got you covered. Design Liquid Glass design that reflects light and refracts what's underneath. It's system wide, with dynamic tab bars and toolbars...
new iphone lockscreen ios 26

iOS 26: All the New iPhone Lock Screen Customizations

Tuesday September 16, 2025 5:56 am PDT by
Apple has now made iOS 26 available to download on compatible iPhone models, and if you just installed the new software, Apple has made some changes and feature additions to the iPhone Lock Screen that you may want to check out. To download iOS 26 on your iPhone, go to Settings ➝ General ➝ Software Update, then let your device check Apple's servers for the latest software. Wait for the...

Top Rated Comments

rukind2 Avatar
3 days ago at 01:57 pm
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
3 days ago at 02:14 pm
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
3 days ago at 02:56 pm

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
3 days ago at 01:14 pm
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
1 day ago at 11:12 am
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
3 days ago at 12:41 am
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)