Polar M400 vs. Garmin Vivofit 3 vs. Apple Watch Series 2 vs. Fitbit Alta HR vs. Diesel On Full Guard 2.5

 
M400
Vivofit 3
Watch Series 2
Alta HR
On Full Guard 2.5
 PolarM400Remove Buy NowGarminVivofit 3Remove Buy NowAppleWatch Series 2Remove Buy NowFitbitAlta HRRemove Buy NowDieselOn Full Guard 2.5Remove Buy Now

Basic Info

Suggested Price$200$100$269$150$325
Release20142016201620172018

Activity & Fitness

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

Battery

Duration8 hours to 30 days1 year18 hours7 days4 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a64 x 64340 x 272 or 390 x 312128 x 36454x454
Sizen/a0.55 inches1.5 inches or 1.65 inches1.4 inches1.39 inches
Touch
Typen/an/aAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatch OSWear OS
Apps
Music

Wearables by Diesel

Diesel On Full Guard

All Wearables