Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Vivofit 4 vs. Apple Watch Series 4 vs. Mobvoi TicWatch C2

 
645 Music
Alta HR
Vivofit 4
Watch Series 4
TicWatch C2
 Garmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivofit 4Remove Buy NowAppleWatch Series 4Remove Buy NowMobvoiTicWatch C2Remove Buy Now

Basic Info

Suggested Price$450$150$79.95$329$200
Release20182017201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days7 days1 yearNot Yet2 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240128 x 3688 x 88384 x 480360 x 360
Size1.2 inches1.4 inchesNA1.78 inches1.3 inches
Touch
TypeMIPOLEDNAMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMNot YetIP68

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OS 5Wear OS
Apps
Music

All Wearables