Beast sensor
Tech specs 
Size20x19x40 mm
Material
Charging
BatteryLi-ion fast charge
Battery lifeUp to 8 hours
Water-resistance
Weight38 grams
SensorAccelerometer (3x), Gyroscope (3x), Compass (3x)
Display
Screen size
Colors
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 Strength, speed, power, explosiveness, volume, average power, reps, density, energy burn, set by set progress, tonnage, weekly progress.
Links 
View onThisisbeast
Amazon US rating
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