Amazfit Bip vs. Garmin 645 Music vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Garmin Vivofit 4 vs. Michael Kors Grayson

 
Bip
645 Music
Grayson
Charge HR
Vivofit 4
Grayson
 AmazfitBipRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$99.99$450$350$150$79.95$350
Release201820182018201520182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 days7 days24 hours5 days1 year24 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution176 x 176240 x 240453 x 454NA88 x 88453x454
Size1.28 inches1.2 inches1.39 inchesNANA1.39 inches
TouchNA
TypeNAMIPAMOLEDOLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM1 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNAAndroid Wear
Apps
Music

All Wearables