TECH SPECS 
SizeOne size fits all
ChargingUSB
BatteryRechargeable
Battery lifeup to 12 hours
Water resistanceup to 30 m
Weight
Sensor6-LED optical heart rate sensor
ConnectivityBluetooth Low Energy
Internal storageInternal memory for up to 200 h of HR training
METRICS 
Heart rateYes
Heart rate variability
Running metrics
Swim statistics
Other
LINKS 
Affiliate link*Amazon
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