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Consumer flagship · Watch · by COROS

COROS Pace 3

A featherweight, subscription-free running watch with open data export — wellness-only, no ECG.
Activity / fitnessCardiovascularSleep & apneaRecovery / stress
August 2023COROS Pace 3
Maturing2 yr 10 mo old
API access: No Raw data access: Yes — open Open source: No public repo
Clinical value
28/100
Wellness-only, no ECG
Empowerment
70/100
Open export, no subscription
Everyday value
70/100
Light, long battery, basic smarts
A light, affordable running watch with strong dual-frequency GPS and a subscription-free model, with open workout export — but no FDA-cleared features and a basic smartwatch feature set.
What it measures
Optical heart rate, SpO2, HRV, sleep stages, barometric altitude, and a full running/training-metrics suite. No ECG or skin temperature.
Regulatory status
Wellness-only — no FDA clearance. SpO2 and heart rate are non-medical.
Validation & accuracy
Dual-frequency GPS rated strong by reviewers; optical HR is rated good-but-inconsistent, weakest on outdoor cycling.
Data control & export
Raw data: open — Training Hub exports FIT/TCX/GPX with bulk export on request, plus Strava / Apple Health / Health Connect sync. API: no public consumer API.
Wearability & battery
Very light (~30g) with a ~17-day battery and a clear (non-AMOLED on base) display; basic smart features beyond training.
Cost & access
One-time ~$229. No subscription — all training software is free.
Who it serves
Runners who want accurate GPS, long battery, and full data ownership at a low price.
Who is left out or burdened
No cleared clinical features; no official API; superseded by the Pace 4 (2025).
✓ Strengths
  • Subscription-free; all training software included
  • Open FIT/TCX/GPX export plus bulk export
  • Very light with ~17-day battery and strong GPS
  • Low price (~$229)
✕ Weaknesses
  • Wellness-only — no ECG or cleared features
  • No official developer API
  • Optical HR inconsistent for some activities
  • Superseded by the Pace 4
28
Why this clinical score. Wellness-only with SpO2 and HR but no ECG — near the bottom of the clinical axis.
70
Why this empowerment score. Open FIT/TCX/GPX export, bulk export, broad sync, and no subscription make it quite empowering despite the lack of a public API.
70
Why this everyday score. Light and affordable with excellent battery, but a basic smartwatch experience keeps everyday value mid-pack.
Latest news
Nov 2025COROS unveils the Pace 4 successor with an AMOLED display.
Reviews & coverage

Reviewers repeatedly call it the best-value running watch, citing light weight, dual-band GPS and huge battery for the price. Limitations noted are basic smartwatch features and a plastic build.

dcrainmakerrtingstechradar
Summary is a draft synthesis of public coverage, not an endorsement. Links open a search of each outlet.
Reddit communities
r/corosr/running
Independent user communities where this device (or its category) is discussed.
Get it · manuals & support
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Draft profile · public-source review, June 2026 · scores describe direction and degree, not buying advice. News, links, and prices change — verify with the manufacturer. Image is representative.