Lightweight Value, With Trail Navigation Limits
Image: official product image from coros.com
Is the COROS Pace 4 good for ultrarunning?
Yes. The COROS Pace 4 is a strong-value choice for ultrarunning if you want a light watch with reliable GPS and useful training tools. It weighs 32g with the nylon band and offers up to 31 hours of dual-frequency GPS, but its breadcrumb routes lack offline maps.
Key facts
| Category | GPS watches |
|---|---|
| Release | Launched and on sale 10 November 2025 |
| Price | $249; £219 to £229; €269 |
| Key specs |
|
| Best for | Runners and ultrarunners wanting a lightweight, affordable watch with strong GPS, training tools and long GPS battery life, who can manage without offline maps. |
| Consensus score | 8.4 out of 10 |
What is the COROS Pace 4?
The COROS Pace 4 is a lightweight GPS sports watch with a 1.2-inch AMOLED touchscreen, dual-frequency GPS and COROS running and training tools. Its screen has a 390 × 390 resolution and reaches up to 1,500 nits. The watch measures 43.4 × 43.4 × 11.8mm, weighing 32g with the nylon band or 40g with silicone. Across reviews from The Run Testers, DC Rainmaker, The 5K Runner and Switchback Travel, the broad verdict is strong value. Its trail navigation is basic: breadcrumb routes, without offline maps.
How does it perform on long runs?
For long outings, the COROS Pace 4 combines a comfortable, slim fit with GPS endurance suited to extended training and ultras. COROS rates it for up to 31 hours in dual-frequency mode or 41 hours in all-systems GPS mode; display settings affect everyday battery life. Reviewers broadly report reliable GPS and useful training analysis. The optical heart-rate sensor is generally good for running, though reviews note lag or under-reading during hard efforts and cycling. Breadcrumb navigation can guide a route, but the lack of offline maps limits its appeal on unfamiliar trails.
Who should buy it?
Choose the Pace 4 if you want an affordable, lightweight watch for running and ultramarathon training, with strong GPS battery life and training tools. The nylon-band version weighs 32g, and its bright AMOLED display is easy to read. It is less suitable if detailed trail mapping is essential: it has breadcrumb navigation but no offline maps. Also consider its limits beyond tracking, including no music streaming, speaker or contactless payments. Overall, reviewers see it as a capable value option rather than a fully featured outdoor navigator.
What reviewers agree on
Strengths
- Lightweight, slim and comfortable for training and long outings
- Bright, readable AMOLED display
- Generally accurate GPS tracking
- Strong battery life for its size and price
- Useful COROS training analysis and running features
Weaknesses
- Breadcrumb navigation only, with no offline or detailed maps
- Optical heart rate can lag or under-read during hard efforts
- No music streaming, speaker or contactless payments
- Always-on display significantly reduces smartwatch battery life
- Some reports of accidental controls, small text or inconsistent raise-to-wake
Frequently asked questions
How does the COROS Pace 4 fit, and how much does it weigh?
The watch measures 43.4 × 43.4 × 11.8mm. It weighs 32g with the nylon band or 40g with the silicone band. Reviewers describe it as slim, lightweight and comfortable for training and long outings. The supplied information does not specify different case sizes.
How long does the COROS Pace 4 battery last?
COROS claims up to 31 hours of dual-frequency GPS tracking or 41 hours in all-systems GPS mode. Smartwatch battery life is rated at up to 19 days, falling to 6 days with the always-on display. Actual everyday endurance depends on display settings.
Is the COROS Pace 4 better than a map-equipped trail watch?
It may suit runners who prioritise a light build, GPS tracking, training features and value. Unlike a watch with detailed offline maps, the Pace 4 offers breadcrumb navigation only. For unfamiliar trails where offline cartography matters, a map-equipped rival is the more suitable choice.
Sources behind this review
How this review works: the consensus score of 8.4 out of 10 condenses the verdicts of the independent reviews and lab tests listed above, compiled by endurance coach Paul Forrest. Prices and specifications are those quoted by reviewers at the time of testing and may have changed.
Training for an ultra? See endurance coaching with Paul Forrest.
