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Simple, minimalistic, small: The platform for the best smartwatch on the market

watchOS only runs on the Apple Watch and launched alongside the product back in 2015. It has seen several major revisions since its launch, such as axing glances, the friends UI, and more.

The original version of the software was very slow and relied on your iPhone for its apps. Everything presumably ran over Bluetooth, and would be unable to open any apps if your connected iPhone was out of range.

Apple quickly moved away from interaction model and pushed native applications as of watchOS 2.0, where the majority of the app’s interface and information were installed on your Apple Watch, instead of your iPhone.

watchOS 3.0 added support for background app refresh, which allowed apps to run in the background, but also enabled complications to be updated without needing to completely launch an app.

With watchOS 4.0, and the Apple Watch Series 3 with LTE, Apple took this interaction model a step further. The company introduced APIs to allow applications to run completely independently of the iPhone. This meant that users were allowed to stream Apple Music, get the latest News, or take a phone call without being in the range of your iPhone. However, an iPhone is still required to setup and manage your Apple Watch.

Learn more about watchOS by reading the articles below:

watchOS 27 drops support for several Apple Watch models, here’s the full compatibility list [U]

Update, 5:11 p.m. ET: Apple has confirmed to 9to5Mac that watchOS 27 will run on Apple Watch Series 9. The original story follows below.

Apple announced watchOS 27 today, alongside iOS 27, macOS Golden Gate 27, iPadOS 27, and its counterparts. watchOS 27 drops support for several older Apple Watch models. Check out below whether your Apple Watch will run the new system.

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Report: watchOS 27 to improve heart-rate tracking; AI health coach may not debut at launch

For the better part of a year, we’ve been hearing about Project Mulberry: Apple’s AI-powered health coach. Back in February, it was reported that these efforts had been scaled back. According to Bloomberg’s Mark Gurman, the features should still be on track for iOS 27, though they may not release until later in the cycle.

On the other hand, Apple is apparently going to greatly improve Apple Watch heart-rate tracking with watchOS 27, which could tie in nicely with Apple’s eventual health coach.

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Apple Watch Ultra: The best Apple Watch I do not need [Video]

I have been an Apple Watch Ultra user since its release in September 2022. Over the years, I have owned the regular Ultra and currently own the Ultra 2 in Black Titanium, and I have worn it nearly every single day. I wanted the Ultra for the little things: a better battery, a larger display, and better build materials. I just wanted to see what Apple could do with its “best” Apple Watch. After using it for nearly four years, I can confidently say that this is the best Apple Watch Apple has ever made, but it’s also an Apple Watch that I just don’t need. Let me explain.

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watchOS 26 public beta lets you try smarter workouts with personality, new and improved Apple Watch apps

watchOS 26 public beta

Apple is now offering the first public beta of watchOS 26, the next major update for Apple Watch, ahead of its official fall release. While the biggest visual update may appear to be the limited Liquid Glass elements, the substance of watchOS 26 exists in how it integrates with Apple Intelligence for smarter workouts and more context-aware communication. After some hands-on time with the update, here’s what stands out so far.

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watchOS 26: More Apple Watch faces using Series 10’s upgraded display

Apple Watch Series 10 advanced display tech | S10 on colorful background

Apple Watch Series 10 features an upgraded display with a faster refresh rate. This enables select watch faces to display a ticking seconds indicator even in always-on mode. However, most watch faces don’t actually take advantage of the new hardware yet. The watchOS 26 software update coming this fall will change that.

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This app turns your Apple Watch into a Game Boy [Hands-on]

Have you ever looked down at your Apple Watch on your wrist and thought to yourself, “I wish I could play my Game Boy games on here”? Yeah, neither have I. But now that I know it’s possible, I can’t stop playing or showing it off. My 6-year-old self would think I was crazy if I told him I could play Pokémon on my wrist in the future. But it’s 2025, and now this is possible and even works exceptionally well. Here is how to do this.

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My favorite features coming to watchOS 11 this year [video]

We are about a month away from Apple’s yearly iPhone event. Of course, they will announce the new iPhone lineup, but this event is also the jumping-off point for releasing new software to the public. Among those software updates will be watchOS 11. I have been using watchOS 11 since its developer beta release in early June, and I’m excited to share some of the best features!

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