The Polar OH1 is an optical heart rate sensor on an elastic wristband that is an alternative to training with a chest strap. Using a high-quality, optical sensor with 6 LEDs, it measures the pulse directly on the upper or forearm - or while swimming with a clip on the swimming goggles - and guarantees flexible and easy use. The optical pulse measurement offers the opportunity to find out how hard the body is working during training and how the training can be adapted to achieve individual goals. Thanks to the light and size-adjustable textile bracelet, it ensures a pleasant, comfortable fit on the arm. A button on the side allows you to start the training session, and an LED signal provides information about the status of the sensor (e.g. battery level). The training data is transmitted to your smartphone or sports watch via Bluetooth or ANT+. The OH1 is compatible with many sports and fitness apps or products. Thanks to the integrated memory, it can also be used in training without additional products and stores up to 200 training hours.

- Battery/rechargeable battery type: 45 mAh (LiPo battery)
- 4MB memory / 200h internal memory
- Battery life: Up to 12 hours
- Material: polyester elastane (inside: chloroprene rubber), polyester
- Up to 75m transmission range
- Waterproof up to 30m
- Weight according to the manufacturer: 21.5 g
- Operation temperature min: -10°C
- Operating temperature max: 50 °C

scope of delivery
- Textile bracelet including sensor holder, fastening clip for swimming goggles, sensor and USB adapter

(Translated with Google Translate)