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Basic Info

Suggested Price$269$299$500$160$199
Release20162017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours4+ daysUp to 2 weeks24 hours to 10 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312348x250240 x 240128 x 128454 x 454
Size1.5 inches or 1.65 inches1.421.2 inchesNA1.39 inches
Touch
TypeAMOLEDOLEDLCDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistance5ATM50m5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSFitbit OSKoodOSBuild-in
Apps
Music

All Wearables