Image of a Watch Series 3
Image of a Vivoactive
Image of a Bip
Image of a 645 Music
Image of a Vivosmart 4
 AppleWatch Series 3Remove Buy NowGarminVivoactiveRemove Buy NowAmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$329$250$99.99$450$130
Release20172015201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours14 hours to 11 days30 days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312205 x 148176 x 176240 x 24048 x 128
Size1.5 inches or 1.65 inches1.38 inches1.28 inches1.2 inches0.74 inches
Touch
TypeAMOLEDLCDNAMIPOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP685 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/a
Apps
Music

All Wearables