Garmin 645 Music vs. Apple Watch Series 4 vs. LG G Watch R vs. Garmin Vivosmart 4 vs. Fitbit Sense 2

 
645 Music
Watch Series 4
G Watch R
Vivosmart 4
Sense 2
 Garmin645 MusicRemove Buy NowAppleWatch Series 4Remove Buy NowLGG Watch RRemove Buy NowGarminVivosmart 4Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$450$329$300$130$300
Release20182018201420182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 daysNot Yet2 days7 days6 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240384 x 480320 x 32048 x 128336x336
Size1.2 inches1.78 inches1.3 inches0.74 inches1.59 inches
Touch
TypeMIPMicroLEDP-OLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMNot YetIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OS 5Android Wear
Apps
Music

All Wearables