Thync
Tech specs 
Size16.5 x 23.1 x 5.3 cm
Material
ChargingYes
BatteryLithium Ion
Battery life1 hour
Water-resistance
Weight1.3 pounds
Sensor
Display
Screen size
Colors
Other
Activity tracking 
Steps
Distance
Calories
Activity
Floors
Sleep
Heart rate
Vo2Max
Stress & recoveryYes
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPS
Running features
Swimming features
Other Thync delivers low-energy waveforms to safelty and comfortably stimulate nerves on your head and face, allowing your body to relax or energize.
Non-fitness functions 
Smartphone notifications
On-board music storage
Connected pay
Links 
Affiliate link*Amazon
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