Polar M400 vs. Diesel On Full Guard vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Fossil Gen 5 Smartwatch Carlyle

 
M400
On Full Guard
Forerunner 235
Flex
Gen 5 Smartwatch Carlyle
 PolarM400Remove Buy NowDieselOn Full GuardRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy Now

Basic Info

Suggested Price$200$325$299.99$100$295
Release20142017201720132019

Activity & Fitness

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

Battery

Duration8 hours to 30 days1 day9 days5 days1 day
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a454 x 454215 x 180NA328 x 328
Sizen/a1.4 inches1.23 inchesNA1.3 inches
TouchNA
Typen/aOMOLEDMIPLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP675 ATM1 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NAWear OS
Apps
Music

All Wearables