Product Price Heart Rate Accuracy (%) Waterproof Rating (IPX) Battery Life (hours) Compatibility Chest Strap Material Monitoring Range (beats per minute (bpm))
Polar Polar H10 Heart Rate Sensor
US
£63.79 ± 1% or 1 bpm, whichever larger. Definition applies to stable conditions. 30 m 400 h Bluetooth LE and ANT+ Polyamide, Polyurethane, Elastane, Polyester 15-240 bpm

Polar H10 is a chest-strap heart rate sensor designed for maximum precision using ECG technology. It supports Bluetooth LE and ANT+ for pairing with training devices and apps, and it can be used while swimming thanks to 30 m water resistance. It uses a CR2025 coin-cell battery and is rated for up to 400 hours of operation.

★ Ideal for

It's suitable for waterproof use because it is water-resistant to 30 m and uses a textile chest strap material, making it appropriate for swimming heart-rate monitoring.