Garmin Forerunner 735XT vs. Amazfit Stratos vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fitbit Charge 3

 
Forerunner 735XT
Stratos
645 Music
Alta HR
Charge 3
 GarminForerunner 735XTRemove Buy NowAmazfitStratosRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge 3Remove Buy Now

Basic Info

Suggested Price$450$199$450$150$150
Release20162018201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days5 days7 days7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution215 x 180320 x 300240 x 240128 x 3666 x 18
Size1.23 inches1.34 inches1.2 inches1.4 inches.721 inches
Touchn/a
Typen/aOLEDMIPOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryNA
Apps
Music

All Wearables