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Technical Specification


Battery type: 190 mAh Li-pol rechargeable battery
Operating time:

In continuous use:

Up to 8 hours with GPS and heart rate sensor

In time mode with daily activity monitoring:

Approximately 30 days

Operating temperature: -10 °C to +50 °C / 14 °F to 122 °F
Training device materials: Stainless steel, Polycarbonate/acrylonitrile butadiene styrene, Acrylonitrile butadiene styrene, Thermoplastic urethane, Polymethylmetacrylate, Silicone
Watch accuracy: Better than ± 0.5 seconds / day at 25 °C / 77 °F temperature
GPS accuracy: Distance ±2%, speed ±2 km/h
Altitude resolution: 1 m
Ascent/Descent resolution: 5 m
Maximum altitude: 9000 m / 29525 ft
Sample rate: 1 s
Accuracy of heart rate monitor: ± 1% or 1 bpm, whichever larger. Definition applies to stable conditions.
Heart rate measuring range: 15-240 bpm
Current speed display range:

0-399 km/h 247.9 mph

(0-36 km/h or 0-22.5 mph (when measuring speed with Polar stride sensor)

Water resistance: 30 m (suitable for bathing and swimming)
Memory capacity: 30 h training with GPS and heart rate depending on your language settings
Display resolution: 128 x 128

H7 Heart Rate Sensor

Battery life: 200 h
Battery type: CR 2025
Battery sealing ring: O-ring 20.0 x 1.0 Material FPM
Operating temperature: -10 °C to +50 °C/14 °F to 122 °F
Connector material: Polyamide
Strap material: 38% Polyamide, 29% Polyurethane, 20% Elastane, 13% Polyester
Water resistance: 30 m

Uses Bluetooth® Smart wireless technology.

Polar FlowSync Software

To use FlowSync software you need a computer with Microsoft Windows or Mac operating system with an internet connection and a free USB port.

Check the latest compatibility information from

Polar Flow mobile application compatibility

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