Polar H9
SizeElastic strap
ChargingReplaceable battery
BatteryCR 2025
Battery life400 hours with BLE, ANT+ and 5 kHz transmission active
Water resistanceup to 30 m
WeightSensor 21 grams, strap 39 grams
SensorHeart rate sensor
ConnectivityBluetooth (one simultaneous connection), ANT+
Internal storageNo
Heart rateYes
Heart rate variabilityYes
Running metricsKeeps track of your heart rate with multiple target zones, calories burned, steps taken and distance.
Swim statisticsTransfers heart rate information while swimming with products which support 5 kHz transmission
OtherCompatible with indoor gym equipment
GoPro connectivity
Choose your favorite activity from 100+ sport profiles and get real-time voice guidance while you train.
Affiliate link*Polar
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