Garmin Vivomove vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Vivomove
645 Music
Alta HR
Vivosmart 3
T-Rex
 GarminVivomoveRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$450$150$139.99$140
Release20162018201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 year7 days7 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240128 x 3664 x 128360 x 360
Sizen/a1.2 inches1.4 inchesNA1.3 inches
Touchn/a
Typen/aMIPOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aBuild-in
Apps
Music

All Wearables