Withings Pulse O2
Tech specs 
Size43 x 22 x 8mm (H x W x D)
Material
ChargingUSB
BatteryLithium-ion polymer battery
Battery lifeUp to 2 weeks
Water-resistanceNo
Weight8 grams
SensorOptoelectronics sensor; Green / Red LEDs; High precision MEMS 3-axis acceleromete
DisplayOLED touchscreen
Screen size128 pixels x 32 pixels
ColorsBlack, Blue
Other
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
FloorsElevation climbed actively
SleepYes
Heart rateYes
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPS
Running features
Swimming features
Other Blood oxygen level
Non-fitness functions 
Smartphone notifications
On-board music storage
Connected pay
Links 
Affiliate link*Amazon
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