Polar A360 vs. Fitbit Ionic vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Michael Kors Grayson vs. Michael Kors Grayson

 
A360
Ionic
G-Shock GBA800
645 Music
Grayson
Grayson
 PolarA360Remove Buy NowFitbitIonicRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$299$120$450$350$350
Release201520172018201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days4+ days2 years7 days24 hours24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 80348x250240 x 240453 x 454453x454
Size1.18 inches1.421.2 inches1.39 inches1.39 inches
Touch
Typen/aOLEDMIPAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR3050m20 ATM5 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSAndroid WearAndroid Wear
Apps
Music

All Wearables