Polar OH1 is an optical heart rate monitor armband that combines versatility, comfort and simplicity. It fits comfortably around your arm and tracks heart rate with Polar's high-quality optical heart rate solution.

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

Works with Polar products

Not a fan of chest straps? Polar OH1 is a great alternative for you: it works with all Bluetooth-compatible Polar sports watches, trackers and cycling computers.

You choose how you wear it

You can wear Polar OH1 on both the upper arm and forearm, just the way you want. It's easy to put on and take off anywhere, anytime.

Train with an app - your phone is your training buddy

Polar OH1 streams real-time heart rate to many popular fitness apps on both iOS and Android phones.

Polar OH1 is a great companion to Polar Beat, Polar's free fitness and training app. With Polar OH1 and Polar Beat you get live heart rate data right on the screen of your phone and audio guidance to your headphones during your workout.

Standalone mode - use it on its own

Prefer training without a watch or phone? Polar OH1 has an internal memory that can store up to 200 hours of training data.

You can easily sync your data to Polar Flow, Polar's free app and web service, via Bluetooth or with your computer via the USB adapter.

Features

• Optical Heart Rate Tracking: Polar OH1 tracks your heart rate with Polar's high-quality 6-LED optical heart rate solution.
• Heart Rate Sensor Mode: You can use Polar OH1 to broadcast your heart rate to any Bluetooth-compatible Polar device, many fitness apps and Bluetooth-compatible gym equipment.
• Built-In Memory: Polar OH1 has a built-in memory that can store up to 200 hours of training data. You can sync your data to Polar Flow with both the Polar Flow app and web service.
• Comfortable Textile Armband: The Polar OH1 armband fits snugly, comfortably and discreetly around your arm. The band is made of a soft textile material and is machine-washable.
• Updatable Firmware: Polar OH1 keeps on improving with over-the-air updates.
• Long Battery Life: With Polar OH1 you get up to 12 hours of training time on a single charge. You can charge the battery easily with the Polar OH1 USB adapter (included).
• Water Resistant: Polar OH1 is water resistant up to 30 m.
• Weight: Sensor 5 g, armband 12 g
• Height: 9.5 mm
• Diameter: 29.85 mm
• Armband: Size M-XXL, machine-washable
• Compatibility: iOS mobile devices: iPhone 4S and later; Android mobile devices with Bluetooth 4.0 capability and Android 4.3 or later.
• Updates: Via Polar Flow
• Memory: 4 MB, up to 200 hours of training time
• Battery: Rechargeable 45 mAh lithium polymer battery