They say good things come in small packages, and that’s certainly the case with the Coros Pace 4. It’s one of the smallest and lightest sports watches I’ve ever tested, but still offers all the essential features endurance athletes need.

The main upgrade on the Coros Pace 3 is the new AMOLED display on the watch, which hasn’t come at the cost of battery life — the Pace 4 is impressively long-lasting given its small design and bright screen.

I’ve run, cycled and done a variety of other workouts with the Coros Pace 4 in the 10 days I’ve had it ahead of its launch, and it’s proved to be an accurate and useful training partner. It’s one of the best sports watches available and one that offers better value than most rivals too.

Coros Pace Pro on price. Both of those watches have had their prices adjusted to account for the new watch, with the Pace 3 costing $199 / £199 and the Pace Pro $299 / £299.

At $249 the Pace 4’s main competitors from other brands are the Suunto Run and the Garmin Forerunner 165, both of which are also lightweight AMOLED sports watches that impressed me during testing.

Coros Apex 4 and Coros Nomad watches this year.

This button can be set to activate a shortcut during activities, with the most useful function for me being the ability to quickly switch between the navigation and stats pages in your sports mode. This doesn’t bring up a map on the Pace 4, but you still get a breadcrumb trail of where you’ve been, plus your route if following one.

Coros Pace 3 and Coros Pace 4

(Image credit: Future)

The Pace 4 has a 1.2in AMOLED display that’s considerably brighter than the MIP screens used on most of the Coros range. It’s not as bright as the screens on the best smartwatches and Garmin watches, but clearly visible in all conditions, and makes the Pace 4 more appealing to use outside of workouts too.

A raft of useful sensors are packed into the Pace 4’s diminutive case, including a barometer and pulse oximeter, and a GPS chipset capable of multi-band tracking. The watch has a 5 ATM waterproof rating, and has a microphone you can use to record voice notes, which is another upgrade on the Pace 3 and Pace Pro watches.

Coros Pace 4

(Image credit: Future)

You don’t get a charging cable in the box for the Pace 4, instead there’s a converter that you can attach to any USB-C cable to plug into the watch. This converter comes with a handy keychain attachment, so you always know where it is (hopefully).

The Pace 4 uses 22mm bands and it’s easy to swap them in and out. It comes with either a silicone or nylon band, and I’d opt for the latter myself, as they are more comfortable and lighter than silicone. That said, swimmers might prefer a silicone band because they dry faster.

Coros Vertix 2S.

I find the analysis offered by Coros to be useful and accurate in gauging things like my threshold pace when running and estimated race times. It doesn’t offer as much guidance as Garmin watches, and there’s no training readiness feature or similar, but the key info on your training load is available and well presented using colorful graphs.

Garmin Forerunner 970 and Suunto Vertical 2.

Throughout testing, the GPS accuracy on the Pace 4 has been excellent for me, with no worrying deviations from the route I ran showing on my GPS tracks. I’ve been able to rely on the watch for accurate lap pace and distance stats during workouts as a result.

To check the heart rate accuracy I compared the readings of the watch to those of a chest strap monitor, which are more reliable than the optical sensors on watches.

Coros Pace 4 HR graph

(Image credit: DC Rainmaker Analyzer)

The Pace 4 did well on this front too. Although it wasn’t always exactly in line with the chest strap, it was usually close, and the only time I saw large, incorrect spikes in the heart rate reading was at the start of runs or after a long pause, and the readings quickly corrected themselves.

Image 1 of 2

Coros Pace 4(Image credit: Future)Coros Pace 4(Image credit: Future)

I did one run where I used the Coros Pace 4, Coros Pace 3 and Coros Pace Pro at the same time, along with the Garmin Forerunner 970 connected to a chest strap, and all of the watches were very close on both heart rate accuracy and the GPS tracks they produced.

Garmin Forerunner 265 would be an appealing alternative to the Coros Pace 4 if it drops to a similar price in sales, however.

If you don’t want an AMOLED display, the Coros Pace 3 is an easy alternative to recommend since it’s a little cheaper than the Pace 4 and offers most of the same features with a MIP screen.

I prefer an AMOLED watch myself, and the Pace 4 impressed me greatly with its design, performance and value throughout testing. It’s a late highlight of 2025.

Google News

Follow Tom’s Guide on Google News and add us as a preferred source to get our up-to-date news, analysis, and reviews in your feeds.