Fitbit Alta vs. Fitbit Flex 2 vs. Michael Kors Grayson vs. Fitbit Flex vs. Garmin Forerunner 45 vs. Michael Kors Grayson

 
Alta
Flex 2
Grayson
Flex
Forerunner 45
Grayson
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$130$100$350$100$199$350
Release201620162018201320192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days24 hours5 days7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a453 x 454NA208 x 208453x454
Sizen/an/a1.39 inchesNA1.04 inches1.39 inches
Touchn/an/aNA
TypeOLEDLEDAMOLEDLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid WearNABuilt-inAndroid Wear
Apps
Music

All Wearables