COROS W331 Fitness Tracker
- Fitness Tracker
- White
- 3.5 ounces
- Better rated than 84%
- More reviewed than 61%
A lightweight COROS tracker option in white, though battery life and screen details aren't spelled out here.
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How it ranks among the 44 fitness trackers we track
4.5★ across 2,000 Amazon ratings, Bayesian-smoothed toward the category average.
2,000 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 44 fitness trackers we track - how the scorecard works · full fitness trackers data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The COROS W331 fitness tracker weighs about 100 grams and comes in white. It's listed under fitness trackers, positioned for everyday activity monitoring rather than dedicated GPS sport tracking.
Specs here are limited to weight and color, so screen size, battery life and specific tracked metrics aren't confirmed in this record. With roughly 200 purchases in the past month, it's a smaller-volume listing compared with some other trackers in this batch.
- Item weight about 100 grams
- White color
- Model W331
- Listed under Fitness Trackers
Who it's for
Fits buyers wanting a lightweight white fitness tracker from COROS for daily activity tracking. Not confirmed for buyers who specifically need GPS sport tracking, which is covered by a separate COROS W331 GPS watch listing.
Strengths and trade-offs
Drawn from this product's published specifications.
- Light at about 100 grams
- No battery life or sensor detail listed
- Past-month purchase figure (200) trails other trackers in this batch
Performance notes
At 100 grams, it sits on the lighter end for daily wear, though the listing doesn't confirm battery life, sensors or screen specifications.
Specifications
| Brand | COROS |
|---|---|
| Model | W331 |
| Color | White |
| Item Weight | 3.5 ounces |
How it compares
This product against the closest alternatives we track in fitness trackers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| COROS W331 Fitness TrackerThis product | 4.5 / 5 | 2,000 | 4.1 / 5 |
| XIAOMI BHR07PYGL Fitness TrackerXIAOMI | 4.5 / 5 | 10,520 | 4.4 / 5 |
| Garmin 010-02809-00 Fitness TrackerGarmin | 4.7 / 5 | 1,974 | 4.4 / 5 |
| Fitbit B0B5F9SZW7 Fitness TrackerFitbit | 4.2 / 5 | 24,802 | 4.4 / 5 |
| SAMSUNG SM-R390 Fitness TrackerSamsung | 4.4 / 5 | 5,770 | 4.3 / 5 |
Similar fitness trackers from other brands
Questions about the COROS W331
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much does the COROS W331 fitness tracker weigh?
About 100 grams.
What color is the COROS W331 fitness tracker?
White.
Is the COROS W331 fitness tracker the same as the COROS W331 GPS watch?
They share a model number but are listed separately here, with different weight and color specs, so treat them as distinct listings.