Garmin Forerunner 225 vs. Polar M400 vs. Casio G-Shock GBA800 vs. Fitbit Charge vs. Fitbit Flex

 
Forerunner 225
M400
G-Shock GBA800
Charge
Flex
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowCasioG-Shock GBA800Remove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$200$120$130$100
Release20152014201820142013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks8 hours to 30 days2 years7-10 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/aNANA
Size1 inchn/aNANA
TouchNANA
Typen/an/aOLEDLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM20 ATM1 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNANA
Appsn/a
Musicn/a

All Wearables