Polar H9 Heart Rate Sensor – ANT + / Bluetooth
![Polar H9 Heart Rate Sensor – ANT + / Bluetooth - Waterproof HR Monitor with Soft Chest Strap for Gym](https://k4s.uk/posts/wp-content/uploads/2024/06/31ZCsQRKqHL.jpg)
Polar H9 Heart Rate Sensor – ANT + / Bluetooth – Waterproof HR Monitor with Soft Chest Strap for Gym, Cycling, Running, Outdoor Sports, Black
![Polar H10](https://k4s.uk/posts/wp-content/uploads/2024/06/a11779b0-ea33-4da3-8508-4bd1d11600b4.__CR0037941555_PT0_SX1464_V1___.png)
![Polar H10](https://k4s.uk/posts/wp-content/uploads/2024/06/466efd16-2ead-4ee9-b0b4-9a888e81cf14.__CR0029281200_PT0_SX1464_V1___.png)
These keep the sensor gripped to your chest at all times so it can measure your heart rate optimally.
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Polar H10
![Polar H9](https://k4s.uk/posts/wp-content/uploads/2024/06/d9962511-5661-4c4b-8c13-73ec37ee7f1c.__CR00200225_PT0_SX200_V1___.png)
Polar H9
![Polar Verity Sense](https://k4s.uk/posts/wp-content/uploads/2024/06/4f352f91-e2e5-4f0c-ab91-7b602c6c04f4.__CR00200225_PT0_SX200_V1___.png)
Polar Verity Sense
![Polar Oh1+](https://k4s.uk/posts/wp-content/uploads/2024/06/b1082dbc-29b2-4cc7-a89f-084f0e88e1f4.__CR00200225_PT0_SX200_V1___.png)
Polar OH1+