Garmin Forerunner 225 vs. Polar M400 vs. Samsung Gear S2 vs. Fitbit Charge vs. Fitbit Flex

 
Forerunner 225
M400
Gear S2
Charge
Flex
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowSamsungGear S2Remove Buy NowFitbitChargeRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$200$300$130$100
Release20152014201520142013

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks8 hours to 30 days2-3 days7-10 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a360 x 360NANA
Size1 inchn/a1.2 inchesNANA
TouchNANA
Typen/an/aSuper AMOLEDOLEDLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIP681 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aTizenNANA
Appsn/a
Musicn/a

All Wearables