polar loop
- VERSATILITY: Wear Polar HR monitor when rowing, cycling, running, training indoors or swimming. Polar H10 is fully waterproof and it has internal memory for one training session..
- SOFTWARE UPDATES: Via Polar Beat app to keep your HRM up-to-date. XS-S- 51-66 cm. Compatibility - iOS mobile devices: iPhone 5 and later, with iOS 11 or later.
- Android mobile devices with Bluetooth 4.0 capability and Android 5.0 or later.
- Operating temperature : -10 °C to +50 °C / 14 °F to 122 °F.