Polar M400 vs. Casio G-Shock GBA800 vs. LG G Watch vs. Garmin Vivofit 4 vs. Apple Watch 7

 
M400
G-Shock GBA800
G Watch
Vivofit 4
Watch 7
 PolarM400Remove Buy NowCasioG-Shock GBA800Remove Buy NowLGG WatchRemove Buy NowGarminVivofit 4Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$200$120$230$79.95$429
Release20142018201420182021

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 years1.5 days1 year18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a280 x 28088 x 88396 x 484
Sizen/a1.65 inchesNA1.9 inches
Touch
Typen/aIPS LCDNAMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM20 ATMIP675 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWatchOS 8
Apps
Music

All Wearables