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Polar OH1+ Heart Rate Sensor: Your heart rate within arm's reach

If you can't stand the chest heart rate monitor belt, choose the Polar OH1+ sensor. It easily attaches to your arm or forearm during your running, trail, and training sessions.

With the free Polar Beat app (available on Android and iOS), you get live results on your smartphone and audio guidance in your headphones. Connected to your Polar watch, you can monitor your heart rate in real-time. Its Bluetooth connection allows you to pair it alone or with different Bluetooth-compatible devices. The ANT+ connectivity secures the connection(s) during your workout and avoids interference.

For your swimming sessions, the OH1+ sensor clips onto your swimming goggles with an included strap clip.

All by itself! The Polar OH1+ heart rate sensor can be used on its own thanks to its internal memory that records up to 200 hours of training. You can then sync your data with Polar Flow and access your results directly.

The Polar OH1+ sensor features an adjustable textile armband for a perfect fit and maximum comfort during your workout.

Key features of the Polar OH1+ heart rate sensor:

• 6-LED optical heart rate monitor
• To be placed on the arm or forearm
• Compatible with Polar Beat: live results
• Audio guidance with headphones (not included)
• Compatible with Bluetooth devices
• ANT+ connection: secures and avoids interference
• Can be used alone: 4 MB internal memory for 200 hours of training
• Data synchronization via Polar Flow
• Battery life: 12 hours in training
• Water resistance: up to 30 meters deep
• Adjustable textile armband: fit and comfort
• Sensor weight: 5 g
• Armband weight: 12 g (machine washable)
• Armband color: black

Box contents:

• OH1+ optical heart rate sensor
• Armband
• Clip for attaching to swimming goggles
• USB charging adapter

Measurements:

• Sensor weight: 5 g
• Armband weight: 12 g
• Swimming goggles clip weight: 3.5 g
• Thickness: 9.5 mm
• Diameter: 29.85 mm
• Armband: size M-XXL, machine washable

Compatibility:

• iOS mobile devices: iPhone 5 and later
• With iOS 11 or later
• Android with Bluetooth 4.0 and Android 5.0 or later

Updates:

• Via Polar Flow

Memory:

• 4 MB, up to 200 hours of training

Battery:

• 45 mAh rechargeable Lithium-ion polymer battery

Water Resistance:

• 30 m