Fossil Q Grant vs. Garmin 645 Music vs. Fitbit Charge 3 vs. Fitbit Flex vs. Amazfit T-Rex

 
Q Grant
645 Music
Charge 3
Flex
T-Rex
 FossilQ GrantRemove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge 3Remove Buy NowFitbitFlexRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$175$450$150$100$140
Release20152018201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days7 days7 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 24066 x 18NA360 x 360
Sizen/a1.2 inches.721 inchesNA1.3 inches
Touchn/aNA
Typen/aMIPOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANABuild-in
Apps
Music

All Wearables