Gymwatch
Tech specs 
Size
MaterialSoft bands with velcro attached to the ends
ChargingMicro USB
BatteryLithium Battery (enough for around 8 workouts)
Battery lifeBetween 10-30 days (depending on the frequency of training).
Water-resistanceSplash-proof
Weight25 grams
SensorThe sensor contains a combination of inertial Sensors, which record the course of your limb movements in all axes.
DisplayLed light
Screen size
ColorsBlack
Other
Activity tracking 
Steps
Distance
Calories
Activity
Floors
Sleep
Heart rate
Vo2Max
UV exposure
Skin temperature
Galvanic skin response
GPS
Running features
Swimming features
Smartphone notifications
Other The sensor records the full range of motion of an exercise, determines every strength component, all repetitions and detects incorrect exercise execution to help ensure exercises are performed properly.
Links 
View onAmazon
Amazon US rating3.4 out of 5 stars
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