Polar OH1
TECH SPECS 
SizeElastic strap
ChargingYes
Battery45 mAh Li-pol rechargeable battery
Battery lifeUp to 12 hours of continuous training
Water resistanceup to 30 m
WeightSensor 5 grams, strap 12 grams
SensorHeart rate sensor
ConnectivityBluetooth
Internal storageUp to 200 hours training
METRICS 
Heart rateYes
Heart rate variability
Running metricsKeeps track of your heart rate with multiple target zones, calories burned, steps taken and distance.
Swim statisticsSuitable for bathing and swimming
Other
LINKS 
Affiliate link*Amazon
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