Fitbit Alta vs. Fitbit Charge 2 vs. Asus VivoWatch vs. Garmin 645 Music vs. Amazfit GTR

 
Alta
Charge 2
VivoWatch
645 Music
GTR
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowAsusVivoWatchRemove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$130$150$160$450$199
Release20162016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days24 hours to 10 days7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a128 x 128240 x 240454 x 454
Sizen/an/aNA1.2 inches1.39 inches
Touchn/an/a
TypeOLEDOLEDNAMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or AltimeterNA
Ultraviolet Sensor
Water Resistancen/an/aIP675 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aKoodOSBuild-in
Apps
Music

All Wearables