Fitbit Alta vs. Microsoft Band 2 vs. Garmin 645 Music vs. Michael Kors Grayson vs. Garmin Forerunner 45 vs. Michael Kors Grayson

 
Alta
Band 2
645 Music
Grayson
Forerunner 45
Grayson
 FitbitAltaRemove Buy NowMicrosoftBand 2Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$130$250$450$350$199$350
Release201620152018201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours (without GPS)7 days24 hours7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 128240 x 240453 x 454208 x 208453x454
Sizen/a1.36 inches1.2 inches1.39 inches1.04 inches1.39 inches
Touchn/a
TypeOLEDCapacitative TFTMIPAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIPX75 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

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

All Wearables