Fitbit Alta vs. Michael Kors Grayson vs. Fitbit Charge vs. Fitbit Flex vs. Michael Kors Grayson vs. Apple Watch 7

 
Alta
Grayson
Charge
Flex
Grayson
Watch 7
 FitbitAltaRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$130$350$130$100$350$429
Release201620182014201320182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours7-10 days5 days24 hours18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454NANA453x454396 x 484
Sizen/a1.39 inchesNANA1.39 inches1.9 inches
Touchn/aNANA
TypeOLEDAMOLEDOLEDLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a1 ATM1 ATM1 ATM1 ATMwater resistant but not waterproof

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aAndroid WearNANAAndroid WearWatchOS 8
Apps
Music

All Wearables