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Polar H9 firmware update 2.1.10
Date:
2025-12-04
There is a new firmware update available for Polar H9. Update your heart rate sensor on your mobile via the Polar Flow or Polar Beat app. See detailed instructions here.
Please note that your H9 must already have version 2.0.4Â installed before updating to 2.1.10. If your sensor has an older version, the Polar Flow app will first offer the 2.0.4 update. Once that update is complete, the app will then offer version 2.1.10.
Release date: December 4th, 2025
Version number: 2.1.10
Enhancements/fixes:
- Lower power use when your sensor searches for a connection, helping extend battery life.
- Enhanced connectivity with Android 15 devices.
- Other bug fixes and quality enhancements for better performance and reliability.