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  ASUS ZenWatchASUS ZenWatch 2ASUS ZenWatch 3Fitbit Flex 2Samsung Gear S2

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 Fitbit
 

Price and Release Date

Suggested Price$150$150$229$100$300
Release / Update20142015201720162015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Swim

Battery

Duration485 days2–3 days
Rechargeable

Compatibility Support

Android
iOS
Windows Phone
Macn/an/an/an/a
Windowsn/an/an/an/a

Connectivity Support

BluetoothYes
Cellular$
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320320 x 320400 x 400n/a360 x 360
Size1.63 inches1.63 inches
or 1.45 inch
1.39 inchesn/a1.2 inches
Touchn/a
TypeAMOLEDAMOLEDAMOLEDLEDSuper AMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP55IP675 ATMIP68

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wear 2Android Wear 2n/aTizen OS
Apps
Music

More Information

 Fitbit
 
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