I just ran 10 miles with the Apple Watch Ultra — and this feature is a game changer

a photo of the Apple Watch Ultra
(Image credit: Future)

The Apple Watch Ultra is here, and it’s Apple’s biggest and best adventure watch yet. It’s designed to be “rugged and capable” — built for marathon runners, divers, and those awe-inspiring folk who take on an ironman. With up to 60 hours of battery life, a huge 49mm design, and the Action Button we’ve all been waiting for, I was excited to put it to the test. 

After I unboxed the Ultra on a rainy Friday morning and set it up, I set out on a ten-mile test run to see how the watch performed, as the first part of my Apple Watch Ultra review. Would Apple’s battery claims stand true, and what about the new workout features, designed to make the watch a competitor to the likes of the Garmin Fenix 7? Read on to find out which feature surprised me the most. 

Not sure how to pick between the Apple Watch Ultra vs Apple Watch Series 8? Read our face-off first. Apple also recently announced the Apple Watch SE 2022, and the Apple Watch Series 8 — check out our reviews of both watches on Tom’s Guide.

I just ran 10 miles with the Apple Watch Ultra — and this feature is a game changer 

I’m the first to admit, I was most excited about the Action Button on the Apple Watch Ultra — a new customizable button that offers instant access to a range of features. You can easily choose between features like a flashlight, backtrack, waypoint and stopwatch, but as a runner, I programmed the Action Button to take me straight to the workout function on the Apple Watch. If I wanted to, the button could take me right to an outdoor run, but as I often use my Apple Watch to track hikes with my dog, swims, and bike rides, I opted to go to the full list of workout modes. 

The button can also be used mid-run to pause the activity — one of my main bugbears on the Apple Watch to date. Sure, Apple gave runners the option to swipe and pause manually or press the two side buttons at the same time, but neither were that easy to do on the move, with sweaty fingers, or when wearing gloves. I found I was able to squeeze the Action Button and the side button while running toward a stop light with no issue. 

Yet the Action Button isn’t the feature that surprised me the most — I was expecting to like it, and I did. Instead, it was the Precision Start feature that really made me think Apple might just have one of the best running watches. Precision start means you can bypass the 3…2…1 countdown sequence when starting an activity, and wait until you know the watch has found GPS signal. 

a photo of the Apple Watch Ultra with the precision start

(Image credit: Future)

As you can see from the photos above, when the watch finds GPS (this only took a few seconds every time I tried it, even indoors), the GPS widget in the top left corner turns blue. 

Again, Apple hasn’t reinvented the wheel here — it’s something Garmin has done for years, but it is a big deal for Apple, and something that should be rolled out across all of its watches. Starting a run without being sure your watch is connected to GPS makes zero sense, especially on race day or when running in the city when crowds and skyscrapers can interfere with your watch's GPS. Plus, it makes sense when Apple has added dual-frequency GPS to the watch, integrating L1 and L5 algorithms. Apple says this allows the Ultra to “deliver the most accurate GPS of any Apple Watch to date.” 

I’ll be continuing to test the Apple Watch Ultra over the next few weeks, and will continue to compare its data to the likes of the Garmin Fenix 7 and Garmin Forerunner 955, yet from my first run, the outlook looks good. Apple hasn’t done anything ground-breaking, but instead, they’ve added the features the Apple Watch has been missing for years in a bigger, brighter package than we’ve ever seen before. 

Next: Some Apple Watch Ultras are experience a display issue — here's what we know.

TOPICS
Jane McGuire
Fitness editor

Jane McGuire is Tom's Guide's Fitness editor, which means she looks after everything fitness related - from running gear to yoga mats. An avid runner, Jane has tested and reviewed fitness products for the past five years, so knows what to look for when finding a good running watch or a pair of shorts with pockets big enough for your smartphone. When she's not pounding the pavements, you'll find Jane striding round the Surrey Hills, taking far too many photos of her puppy. 

Read more
Apple Watch Ultra 2 on a black silicone strap and Amazfit T-Rex 3 on an orange silicone strap shown side-by-side on a user's wrist
I walked 10,000 steps with Apple Watch Ultra 2 vs Amazfit T-Rex 3 —here's the winner
Close-up of the Apple Watch Ultra 2 (left) next to the Garmin Instinct 3 (right) in a user's hand
Garmin Instinct 3 vs. Apple Watch Ultra 2: Biggest differences to consider before you buy
Close up of the Amazfit T-Rex 3 smartwatch on an orange silicone strap
I just went hands-on with the Amazfit T-Rex 3 and it could be my new favorite wallet-friendly rugged smartwatch
Close-up of the Garmin Instinct 3 in 45mm on a user's wrist with the 'torch' flashlight shining
I wore the Garmin Instinct 3 for over a week — here's 5 things I like and 2 I hate
Close up of Garmin Instinct 3 GPS smartwatch in Neotropic/Twilight with a grey and orange case and sea foam green strap
I tracked my day at CES with the new Garmin Instinct 3 — and walked over 17,000 steps
The Amazfit Active 2 on display at CES 2025 in Las Vegas
The Amazfit Active 2 has all the features of a flagship smartwatch for under $100
Latest in Smartwatches
The coolest things the Apple Watch can do
A folding Apple Watch could follow the iPhone Flip — here’s what we know
Atari 2600 My Play Watch
It's not just Pebble — Atari is back with a watch that lets you play retro games on your wrist
Pebble Core 2 Duo and Core Time 2 smartwatches
Pebble is back with two new smartwatches starting at $149 — how to preorder
Garmin Fenix 8 Sleep
New data reveals the average Garmin sleep score — do you sleep better or worse than most people?
Garmin Fenix 8 deal
Act fast! Unexpected discount sees Garmin Fenix 8 drop to its lowest price on Amazon
The coolest things the Apple Watch can do
7 best Apple Watch features you're probably not using, but should
Latest in News
iPhone 16 Pro vs iPhone 16 Pro Max in hand showing displays
Forget iPhone 17 — iPhone 18 could get this huge upgrade
The new Husqvarna iQ series robot lawn mower.
Husqvarna’s new robot mowers offer GPS for less
Rendered images of rumored foldable iPhone.
Foldable iPhone report just revealed key details — here's what we know
NYTimes Connections
NYT Connections today hints and answers — Sunday, March 23 (#651)
NYT Strands on a cellphone
NYT Strands today — hints, spangram and answers for game #385 (Sunday, March 23 2025)
Nintendo Switch 2
Nintendo Switch 2 rumored specs — here’s what we know so far