HRM 600
Garmin HRM 600 is a chest strap from 2025, sitting in the mid-range band at an indicative $169.
It reads 6 of the 33 signals this comparison tracks. Nothing at all from sleep, fitness and body composition.
By sensor class: 3 at high accuracy and 2 at consumer grade. That grade is my classification of the hardware, not a lab test. Those readings come from ECG electrodes and an accelerometer.
Rated 5ATM / 50m, fine for swimming. It weighs 61 g. No subscription is required.
May 2025 rechargeable chest strap with onboard storage. Adds running economy and step speed loss on top of running dynamics.
Key specs
What it tracks
Heart & vitals
Activity
Sources
https://www.garmin.com/en-US/p/hrm-600/https://the5krunner.com/2025/05/16/garmin-hrm-600-review/
Buying for battery life? See every device ranked by battery life
Your wearable's data, read against your own normal
MyBodyAI reads COROS, Garmin, Oura, Polar and Withings by logging in, and Fitbit and Pixel Watch through Google Health. Older Garmin history comes from a data export. It learns how you usually sleep and what your resting heart rate usually is, and every day shows where you stand against yourself: recovery, sleep, load and immune scores, a biological age estimate and early warnings. Optional, and separate from this comparison.
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