Garmin Forerunner 735XT vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Garmin 645 Music vs. Amazfit GTR

 
Forerunner 735XT
Activite Sapphire
Charge 2
645 Music
GTR
 GarminForerunner 735XTRemove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$450$450$150$450$199
Release20162014201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days8 months5 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180n/an/a240 x 240454 x 454
Size1.23 inches1.3 inchesn/a1.2 inches1.39 inches
Touchn/an/a
Typen/aAnalogOLEDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMn/a5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aBuild-in
Apps
Music

All Wearables