Fitbit Charge 2 vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Fitbit Charge HR

 
Charge 2
G-Shock GBA800
645 Music
Alta HR
Charge HR
 FitbitCharge 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge HRRemove Buy Now

Basic Info

Suggested Price$150$120$450$150$150
Release20162018201820172015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 years7 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240128 x 36NA
Sizen/a1.2 inches1.4 inchesNA
Touchn/aNA
TypeOLEDMIPOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a20 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNA
Apps
Music

All Wearables