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Wearable comparison / COROS / COROS PACE 4 Pro
COROS

COROS PACE 4 Pro

Watchreleased 2026MyBodyAI · Connects by login

COROS PACE 4 Pro is a watch from 2026, sitting in the premium band at an indicative $449.

It reads 15 of the 33 signals this comparison tracks. Full coverage of activity. Nothing at all from body composition.

By sensor class: 6 at high accuracy and 2 at consumer grade. That grade is my classification of the hardware, not a lab test. Those readings come from an optical heart rate sensor, ECG electrodes, an optical blood oxygen sensor, a GPS receiver, a barometer and an accelerometer. Blood oxygen is a spot reading you take yourself, not a continuous one.

Its 21 days per charge are the 22nd longest of the 80 devices of its kind here that publish a figure. The AMOLED screen can stay always on. Multi-band GPS. Rated 5ATM, fine for swimming. On top of the tracking it also handles music on the device and offline maps. No subscription is required.

September 2026 step up from the PACE 4: a titanium bezel, a bigger sapphire AMOLED screen, offline maps, a speaker, SpO2 and the ECG sensor COROS also fits to the PACE Pro.

Key specs

Price
$449indicative US list price
Battery
21 d · GPS 60 h21 days daily use, 60h GPS (45h with always-on)
Display
AMOLED · always-on
Water resistance
5ATM (swim)
GPS
Multi-band
Weight
43 g
Works with
iOS + Android
Subscription
Not required · COROS appfree
Extras
MusicOffline maps
not confirmed: case size, weight is the 43 g COROS quotes, the body alone is 38 g, COROS lists an ECG sensor but does not say whether it records a trace or only feeds its HRV check
Official store →

What it tracks

Heart & vitals

Resting heart rateHigh accuracy
HRVHigh accuracy
Blood oxygen (SpO2)tracked

Sleep

Sleep durationHigh accuracy
Sleep stagesHigh accuracy

Activity

StepsHigh accuracy
Active minutestracked
CaloriesConsumer
WorkoutsHigh accuracy
Floorstracked
Distancetracked

Fitness

VO2maxtracked
Training loadtracked
Recovery / readinesstracked
All-day stressConsumer

Not established: ECG recording, AFib detection. The maker does not state it and no independent test I trust settles it. The signal counts on this page only include confirmed signals, so it is left out of them, which is not the same as the device lacking it.

Screening, not a medical diagnosis. This device offers SpO2. These are wellness screening features, not a substitute for a clinical evaluation.
If you want to go deeper

Turn a supported wearable into daily health scores

MyBodyAI reads COROS, Oura, Polar and Withings by logging in, Fitbit and Pixel Watch through Google Health, and Garmin through the Android app or a data export, then builds daily recovery, sleep, load and immune scores, a biological age estimate, and early warnings. Optional, and separate from this comparison.

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