Garmin Fenix 3 vs. Polar M400 vs. Diesel On Full Guard vs. Garmin Forerunner 235 vs. Fitbit Flex

 
Fenix 3
M400
On Full Guard
Forerunner 235
Flex
 GarminFenix 3Remove Buy NowPolarM400Remove Buy NowDieselOn Full GuardRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$500$200$325$299.99$100
Release20152014201720172013

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks8 hours to 30 days1 day9 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218n/a454 x 454215 x 180NA
Size1.2 inchesn/a1.4 inches1.23 inchesNA
TouchNA
TypeChroma LEDn/aOMOLEDMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM3 ATMIP675 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0NA
Apps
Music

All Wearables