Garmin Forerunner 225 vs. Polar M400 vs. Garmin Forerunner 935 vs. Amazfit Stratos vs. Samsung Gear 2

 
Forerunner 225
M400
Forerunner 935
Stratos
Gear 2
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowGarminForerunner 935Remove Buy NowAmazfitStratosRemove Buy NowSamsungGear 2Remove Buy Now

Basic Info

Suggested Price$300$200$500$199$300
Release20152014201720182014

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks8 hours to 30 daysUp to 2 weeks5 days2-3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a240 x 240320 x 300320 x 320
Size1 inchn/a1.2 inches1.34 inches1.63 inches
Touch
Typen/an/aLCDOLEDSuper AMOLED

Functions

Audio Speaker22Alerts onlyBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATM5 ATMIP67

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aProprietaryTizen OS
Appsn/a
Musicn/a

All Wearables