Casio G-Shock GBA800 vs. Garmin 645 Music vs. Garmin Forerunner 235 vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Michael Kors Grayson

 
G-Shock GBA800
645 Music
Forerunner 235
Grayson
Alta HR
Grayson
 CasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$450$299.99$350$150$350
Release201820182017201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 years7 days9 days24 hours7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240215 x 180453 x 454128 x 36453x454
Size1.2 inches1.23 inches1.39 inches1.4 inches1.39 inches
Touch
TypeMIPMIPAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance20 ATM5 ATM5 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wear
Apps
Music

All Wearables