Fitbit Alta vs. Amazfit Stratos vs. Michael Kors Grayson vs. Fitbit Charge vs. Fitbit Flex vs. Michael Kors Grayson

 
Alta
Stratos
Grayson
Charge
Flex
Grayson
 FitbitAltaRemove Buy NowAmazfitStratosRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$130$199$350$130$100$350
Release201620182018201420132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days24 hours7-10 days5 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300453 x 454NANA453x454
Sizen/a1.34 inches1.39 inchesNANA1.39 inches
Touchn/aNANA
TypeOLEDOLEDAMOLEDOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aProprietaryAndroid WearNANAAndroid Wear
Apps
Music

All Wearables