Fitbit Alta vs. Microsoft Band 2 vs. ASUS ZenWatch 3 vs. Garmin 645 Music vs. Amazfit GTR

 
Alta
Band 2
ZenWatch 3
645 Music
GTR
 FitbitAltaRemove Buy NowMicrosoftBand 2Remove Buy NowASUSZenWatch 3Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$130$250$229$450$199
Release20162015201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours (without GPS)48 hours7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 128400 x 400240 x 240454 x 454
Sizen/a1.36 inches1.39 inches1.2 inches1.39 inches
Touchn/a
TypeOLEDCapacitative TFTAMOLEDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2Build-in
Apps
Music

All Wearables