Head-to-Head / Devices
Polar H10 vs Garmin HRM-Pro Plus
Polar H10 wins for pure HRV accuracy and third-party app compatibility. Garmin HRM-Pro wins if you own Garmin devices and want running dynamics.
HRV Accuracy
✓ Polar H10Polar H10 RR intervals: 99.1% concordance with 12-lead ECG. Garmin HRM-Pro+: 97.3%. Winner: Polar H10.
Running Dynamics
✓ Garmin HRM-Pro PlusHRM-Pro+ provides cadence, vertical oscillation, ground contact time. H10 does not. Winner: Garmin HRM-Pro+.
Third-Party App Support
✓ Polar H10Polar H10 has broader BLE SDK compatibility (HRV4Training certified, Zwift, Elite HRV). Winner: Polar H10.
Final Verdict
Buy Polar H10 if: Pure HRV accuracy is your priority. You use third-party apps like HRV4Training. Buy Garmin HRM-Pro+ if: You own Garmin devices. You want running dynamics data.