Garmin Forerunner 735XT vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Fitbit Flex vs. Apple Series 6

 
Forerunner 735XT
G-Shock GBA800
645 Music
Flex
Series 6
 GarminForerunner 735XTRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$450$120$450$100$399
Release20162018201820132020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days2 years7 days5 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution215 x 180240 x 240NA384 x 480
Size1.23 inches1.2 inchesNA40mm
Touchn/aNA
Typen/aMIPLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM20 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWatchOS 5
Apps
Music

All Wearables