Fitbit Alta
Tech specs 
SizeWidth 15mm
(Sizes depend on type of band)
MaterialStainless steel clasp, Classic band (elastomer), Metal band (stainless steel metal), Leather band (soft, genuine leather)
ChargingUSB
BatteryLithium-polymer
Battery lifeup to 5 days
Water-resistanceSweat, rain and splash proof.
Weight29 grams
Sensor3-axis accelerometer, Vibration motor
DisplayOLED
Screen size1.4-inch, 128 x 36 pixel resolution
ColorsClassic (Black, Blue, Plum, Peal); Leather (Bluish Pink, Graphite); Metal (Stainless Steel)
Other
Activity tracking 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
Floors
SleepYes
Heart rate
Vo2Max
UV exposure
Skin temperature
Galvanic skin response
GPS
Running features
Swimming features
Smartphone notificationsYes
Other Clock, auto sleep detection, silent wake alarm, auto exercise recognition.
Links 
View onAmazon | Best Buy | Target | eBay
Amazon US rating4.2 out of 5 stars
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