Polar M400 vs. Garmin Forerunner 235 vs. Garmin Vivoactive 3 vs. Fitbit Flex vs. Diesel On Full Guard 2.5

 
M400
Forerunner 235
Vivoactive 3
Flex
On Full Guard 2.5
 PolarM400Remove Buy NowGarminForerunner 235Remove Buy NowGarminVivoactive 3Remove Buy NowFitbitFlexRemove Buy NowDieselOn Full Guard 2.5Remove Buy Now

Basic Info

Suggested Price$200$299.99$299$100$325
Release20142017201720132018

Activity & Fitness

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

Battery

Duration8 hours to 30 days9 days7 days5 days4 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a215 x 180240 x 240NA454x454
Sizen/a1.23 inches1.2 inchesNA1.39 inches
TouchNA
Typen/aMIPMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM1 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OS
Apps
Music

Wearables by Diesel

Diesel On Full Guard

All Wearables