Fitbit Ionic vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Fitbit Flex vs. Amazfit Verge

 
Ionic
G-Shock GBA800
645 Music
Flex
Verge
 FitbitIonicRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowAmazfitVergeRemove Buy Now

Basic Info

Suggested Price$299$120$450$100$160
Release20172018201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days2 years7 days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250240 x 240NA454x454
Size1.421.2 inchesNA1.39 inches
TouchNA
TypeOLEDMIPLEDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m20 ATM5 ATM1 ATMIP68

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSNAAMAZFIT OS
Apps
Music

All Wearables