Fitbit Alta vs. Fitbit Flex 2 vs. Michael Kors Grayson vs. Garmin Vivofit 4 vs. Michael Kors Grayson vs. Amazfit GTS

 
Alta
Flex 2
Grayson
Vivofit 4
Grayson
GTS
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$130$100$350$79.95$350$150
Release201620162018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days24 hours1 year24 hours14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a453 x 45488 x 88453x454348 x 442
Sizen/an/a1.39 inchesNA1.39 inches1.65 inches
Touchn/an/a
TypeOLEDLEDAMOLEDNAAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid WearAndroid WearWear OS
Apps
Music

All Wearables