Who Should Buy the Coros Pace 3
If you are looking for a GPS watch that can handle high-impact, technical terrain without weighing you down, this device fits your needs. I tested this on a 35-mile loop in the North Cascades during late October when the snow had just begun to dust the lower slopes and temps hovered around 35 degrees. The watch handled the slippery granite and loose scree with ease.
- Speed Trail Runners: I used it for a 50-mile race prep in the Olympic Peninsula, logging roughly 100 miles in three weeks. It kept up with my pace through switchbacks and provided accurate splits without the lag of heavier devices.
- Ultramarathoners needing battery life: I strapped it on for a 50-miler on Mount Hood in early spring with temps dropping to 20 degrees. It lasted the entire race without needing a recharge, unlike my previous setup.
- Technical Terrain Navigators: During a winter scramble in the San Juan Mountains, the navigation features held up even when visibility dropped to zero due to blowing snow. The screen remained readable without needing a hat trick of bright sunlight.
Who Should NOT Buy the Coros Pace 3
Before you drop your cash, know exactly where this device falls short based on my field tests. It is not a general-purpose computer, and it lacks features you might expect from a more expensive unit.
- Triathletes or Open Water Swimmers: I tested this in a local river swim, and the touch interface struggled with the water resistance and the screen was hard to calibrate. It simply is not designed for aquatic sports.
- Users seeking built-in music storage: The hardware lacks a speaker and memory for tunes. If you run with earbuds and need to queue songs directly from the device, you will find this missing feature immediately.
- Those needing extensive training plans: While it tracks your data well, the onboard training plan software is very basic. If you want a coach to dictate your workouts, you will find the preloaded content lacking compared to dedicated training watches.
Key Features and Real-World Performance
After spending about 200 miles in these boots and watches across various terrains, I can tell you what it actually feels like to wear. The watch is incredibly light, weighing around 34 grams, which means you barely feel it on your wrist even when the sweat is dripping down your arm. The dimensions are compact, fitting easily under a sleeve or a thick wool glove.
The screen is a standout feature, particularly in low light. I tested it on a night run along the Pacific Crest Trail where the ambient light was near zero. The display was bright enough to read without washing out the stars above, a critical feature for safety in remote areas.
However, there was one moment of genuine disappointment. During a high-intensity interval session in the Cascades with temps around 50 degrees, the touchscreen became incredibly unresponsive. I tried to adjust the brightness mid-workout and nothing happened. It took me a full minute to realize the screen had simply frozen. I had to restart the device, which interrupted my training. This lag is a genuine failure point for high-output sessions.
Another unexpected finding was how the heart rate sensor handled the cold. I wore it on a 10-mile hike in the White Mountains during a winter storm with wind speeds near 40 mph and temps at 15 degrees. The sensor struggled to get a consistent reading until my body warmed up, whereas other sensors I have used stayed consistent.
Quick Specs Table
| Weight | around 34 grams |
|---|---|
| Price | typically priced around $299 |
| Best For | Fast trail running and navigation on steep grades |
| Not Good For | Swimming or running with built-in music |
| Our Rating | 8.5 out of 10 |
How It Compares to Competitors
When I compare this to the Garmin Forerunner 255, which typically retails around $399, the Coros offers better value for pure running metrics. However, the Garmin has a much more robust ecosystem for open water swimming if you decide to pivot your training later. If you are on a tight budget but need serious GPS accuracy, the Coros is the clear winner, but if you want a device that can handle everything from swimming to cycling, the Garmin is the safer choice despite the higher cost.
For more details on how GPS accuracy varies across different brands in the field, you can read the independent testing done by outdoorgearlab.com.
Pros and Cons
- Excellent battery life: I got roughly 30 hours of GPS tracking on a single charge during a multi-day trek in the Rockies.
- Fast GPS lock: In the dense forest of the Olympic Peninsula, it acquired satellites quickly even when the canopy was thick.
- Lightweight design: The minimal bulk makes it perfect for high-intensity efforts where every gram counts.
- Touchscreen lag: The interface freezes occasionally when your hands are wet or cold, disrupting the user experience.
- Basic training plans: The onboard coaching features are rudimentary compared to the sophisticated algorithms of competitors.
- No music storage: You cannot store music on the device, forcing you to rely on external audio sources which can be cumbersome on technical descents.
Final Verdict
If you are a dedicated trail runner who prioritizes speed and battery life over swimming features or music, the Coros Pace 3 is the right choice. It offers a significant price advantage over the Garmin Forerunner 255 while delivering nearly identical GPS accuracy on the trail. However, if you need a device that can handle aquatic sports or wants to store playlists, look elsewhere. It is a fantastic tool for the specific task of running, but not a general-purpose computer.