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-resistance
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
CaloriesYes
ActivityYes
FloorsElevation climbed actively
SleepYes
Heart rateYes
Vo2Max
UV exposure
Skin temperature
Galvanic skin response
GPS
Running features
Swimming features
Smartphone notifications
Other Blood oxygen level
Links 
View onAmazon, Withings
Amazon US rating3.4 out of 5 stars
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