Polar H7
TECH SPECS 
SizeElastic strap comes in XS-S or M-XXL options
ChargingReplaceable battery
BatteryCR2032
Battery lifeup to 200 h
Water resistanceup to 30 m
Weight
SensorHeart rate sensor
ConnectivityBluetooth
Internal storageNo
METRICS 
Heart rateYes
Heart rate variabilityNo
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
OtherChoose your favorite activity from 100+ sport profiles and get real-time voice guidance while you train.
LINKS 
View onAmazon
Amazon US rating4.1 out of 5 stars
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