Fitbit Alta vs. Garmin 645 Music vs. Pebble Time 2 vs. Amazfit GTR

 
Alta
645 Music
Time 2
GTR
 FitbitAltaRemove Buy NowGarmin645 MusicRemove Buy NowPebbleTime 2Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$130$450$199$199
Release2016201820162019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days10 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NA454 x 454
Sizen/a1.2 inchesNA1.39 inches
Touchn/a
TypeOLEDMIPe-paperAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aPebble OSBuild-in
Apps
Music

All Wearables