The Polar OH1 is an optical heart rate monitor with a soft, elastic strap that combines versatility, comfort, and simplicity. It fits comfortably on your arm and measures your heart rate using Polar's high-quality optical sensor.

With the Polar OH1, nothing stands between you and your goals.

Compatible with Polar products. Not a fan of chest straps? The Polar OH1 is an excellent alternative for you: it is compatible with all Bluetooth-enabled sports watches, fitness trackers, and bike computers from Polar.

Your smartphone as a training partner. The Polar OH1 transmits your heart rate in real-time to many popular fitness apps on iOS and Android phones.

Standalone use. Prefer to train without a watch or phone? The Polar OH1 has a built-in memory that can store up to 200 hours of training data.

You can easily transfer your data via Bluetooth or with the USB adapter.