Fitbit Alta vs. Fitbit Charge 2 vs. Microsoft Band 2 vs. Michael Kors Access Sofie vs. Michael Kors Grayson vs. Michael Kors Grayson

 
Alta
Charge 2
Band 2
Access Sofie
Grayson
Grayson
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowMicrosoftBand 2Remove Buy NowMichael KorsAccess SofieRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$130$150$250$395$350$350
Release201620162015201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days48 hours (without GPS)1 day24 hours24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 128390 x 390 1.19 inches453 x 454453x454
Sizen/an/a1.36 inches1.39 inches1.39 inches
Touchn/an/aAMOLDED
TypeOLEDOLEDCapacitative TFTAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/an/aIPX71 ATM1 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/an/aAndroid Wear 2.0Android WearAndroid Wear
Apps
Music

All Wearables