Fitbit Blaze
Tech specs 
SizeWidth 40mm
(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.
Weight43 grams
Sensor3-axis accelerometer, 3-axis gyroscope, Optical heart rate monitor, Altimeter, Ambient light sensor and Vibration motor
DisplayTouch-screen colour LCD.
Screen size19.05mm x 25.4mm
ColorsClassic (Black, Blue and Plum), Leather (Black, Camel and Mist Gray), Metal
Other
Activity tracking 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
FloorsYes
SleepYes
Heart rate24/7
Vo2MaxYes
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
GPSConnected GPS
Running features
Swimming features
Smartphone notificationsYes
Other Guided breathing, music control.
Links 
View onAmazon | Best Buy | Target | eBay
Amazon US rating4.1 out of 5 stars
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