The OH1 (and OH1+) heart rate monitor is an optical sensor that is comfortably worn on the arm or can be attached to glasses/helmet using the provided accessory. The M–XXL band size fits most men's upper arms. The strap is machine washable and designed for long-term use.
Features:
- Lightweight design: The sensor weighs approximately 5 g, the band about 12 g, and the clip about 3.5 g.
- Water resistance: Resistant up to a depth of 30 meters.
- OH1+ model: Adds ANT+ support and extended memory up to 200 hours. It can be used independently or paired with various devices via Bluetooth or ANT+.