MyKronoz ZeFit4 HR
Tech specs 
Size45.5*18.6*9.3 mm
Material
ChargingUSB
BatteryLi-ion 80 mAh
Battery lifeup to 5 days
Water-resistanceIP67
Weight17 grams
Sensor3-axis accelerometer, optical HR sensor
DisplayColor touchscreen 160*64 pixels
Screen sizeTFT 1.06 inches
ColorsVarious
Other
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
Floors
SleepYes
Heart rateYes
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPS
Running features
Swimming features
Other Camera remote, weather forecast, find my phone and more
Non-fitness functions 
Smartphone notificationsYes
On-board music storageNo (allows for music control)
Connected pay
Links 
Affiliate link*Amazon
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