Polar M400 vs. Fitbit Charge 2 vs. Misfit Flash Link vs. Garmin Vivofit 4 vs. Polar Loop

 
M400
Charge 2
Flash Link
Vivofit 4
Loop
 PolarM400Remove Buy NowFitbitCharge 2Remove Buy NowMisfitFlash LinkRemove Buy NowGarminVivofit 4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$150$20$79.95$100
Release20142016201520182013

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days6 months1 year5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a88 x 88NA
Sizen/an/an/aNANA
Touchn/an/a
Typen/aOLEDn/aNALED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMn/a3 ATM5 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aNA
Apps
Music

All Wearables