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Image of a Versa
Image of a 645 Music
Image of a Forerunner 45
Image of a Vivosmart 4
 AppleWatch Series 3Remove Buy NowFitbitVersaRemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$329$199.99$450$199$130
Release20172018201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours4 days7 days7 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312300 x300240 x 240208 x 20848 x 128
Size1.5 inches or 1.65 inches1.34 inches1.2 inches1.04 inches0.74 inches
Touch
TypeAMOLEDOLEDMIPLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Built-in
Apps
Music

All Wearables