US
COROS

COROS PACE 3 GPS Sport Watch

  • 17 day battery life, 0.91 amp hour lithium ion cell
  • Built-in GPS, waterproof
  • Heart rate, sleep duration and elevation measured
  • 3 GB storage, Bluetooth link
  • 100 gram weight, silicone band
  • 2 year warranty

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A GPS sports watch with a battery rated in weeks, for runners and hikers who log elevation. Some fields in the listing look inconsistent, so confirm the case material and storage figure with the seller.

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ASIN: B0CFQFSTSNModel: W331Category: Fitness Trackers

Overview

A built-in GPS receiver and a mix of touchscreen and push button controls run the COROS W331, a round watch on a silicone band with a tang buckle. It pairs over Bluetooth with iOS and Android phones.

GPS, an elevation reading and a battery rated in weeks suit outdoor training that runs long. The limitation is odd data, from a very large battery figure to a case material that reads as silicon.

Who it's for

Outdoor runners and hikers who log routes and elevation are the setting, with a phone for sync. Buyers who want contactless payments or calls from the wrist, or who need tidy listing data, should look closer first.

Pros and cons

Pros
  • Elevation and sleep tracking
  • Touchscreen plus push button
  • Waterproof rating listed
  • Long warranty term
Cons
  • Case material reads oddly
  • Battery capacity figure looks off
  • Water depth rating absent
  • Short metrics list

Performance notes

GPS mode is the largest drain on the cell, so the rated days apply to light use and fall with long tracked sessions. Heart rate readings depend on how snugly the band fits against the skin. Elevation tracking relies on the sensors named in the metrics list.

Where it stands among fitness trackers

  • 910 mAh battery capacity: longer than 96% of the fitness trackers we list.
  • 17 days battery average life: longer than 85% of the fitness trackers we list.

From the specs of the 43 fitness trackers we list; not a test result.

Specifications

BrandCOROS
ModelW331
Dimensions & fit
Screen size1.2 inches
Item Weight100 grams
Item Dimensions4.13 x 4.13 x 4.13 inches
Capacity & performance
Battery Capacity0.91 amp hourshigher than 96% of 28 fitness trackers
Memory Storage Capacity3 GBhigher than 68% of 26 fitness trackers
Age Range Description14-80
Power & efficiency
Battery Average Life17 dayshigher than 85% of 27 fitness trackers
Battery Cell TypeLithium Ion
Construction & materials
Band Material TypeSilicone
Case Material TypeSilicon
Band ColorBlack
ColorWhite
Compatibility & installation
Compatible Phone ModelsCompatible with iOS and Android devices
Connectivity TechnologyBluetooth
Human Interface InputTouchscreen
Compatible DevicesSmartphone
Warranty & support
Warranty Description2 year
Warranty TypeStandard
Other details
Gps Geotagging FunctionalityBuilt-in GPS
Water Resistance LevelWaterproof
Display TypeLCD
Resolution320 x 320
Control TypePush Button
Closure TypeBuckle
Metrics MeasuredHeart Rate, Sleep Duration, Elevation
BuiltIn MediaSports Watch
Operating SystemAsteroidOS
ShapeRound
Target AudienceUnisex Adults
Wearable Computer TypeSmart Watch

Closest rivals on specs

WHOOP 5.0 MG Activity Tracker
  • Battery Average Life 17 vs 14 days (+21%)
  • Item Weight 0.22 vs 0.16 pounds (+38%)
Fitbit Inspire 3 Fitness Tracker Band
  • Memory Storage Capacity 3 vs 6.4 GB (-53%)
  • Battery Average Life 17 vs 10 days (+70%)
  • Screen Size 1.2 vs 1 inches (+20%)
Fitbit Charge 6 Activity Tracker GA05183-GB
  • Memory Storage Capacity 3 vs 4 GB (-25%)
  • Screen Size 1.2 vs 1 inches (+20%)
  • Item Weight 0.22 vs 0.01 pounds (+2100%)
Compare all side by side

Frequently asked questions

How big is the COROS W331 screen?

The LCD is 1.2 inches with a resolution of 320 x 320.

Does the COROS W331 have built-in GPS?

Yes. The listing says built-in GPS and names GPS as the satellite navigation system.

Which phones work with the COROS W331?

The listing says it is compatible with iOS and Android devices over Bluetooth.

Is the COROS W331 waterproof?

It is listed as waterproof, but no depth rating is given, so check the seller before swimming.