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Basic Info

Suggested Price$269$300$300$150$470
Release20162015201520142014

Activity & Fitness

Calories
Cycling (Bicycling)n/a
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours10 hours to 4 weeks1.5 days5-7 days13 hours to 30 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312180 x 180360 x 325 or 360 x 330168 x 144n/a
Size1.5 inches or 1.65 inches1 inch1.37 inches or 1.56 inches1.26 inchesn/a
Touch
TypeAMOLEDn/aLCDe-papern/a

Functions

Audio Speaker22BluetoothAlerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM5 ATMIP675 ATM3 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemWatch OSn/aAndroid WearPebble OSn/a
Appsn/a
Musicn/an/a

All Wearables