Polar M400 vs. Misfit Ray vs. Polar Loop 2 vs. Fitbit Charge vs. Polar Loop

 
M400
Ray
Loop 2
Charge
Loop
 PolarM400Remove Buy NowMisfitRayRemove Buy NowPolarLoop 2Remove Buy NowFitbitChargeRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$100$120$130$100
Release20142016201520142013

Activity & Fitness

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

Battery

Duration8 hours to 30 days6 months8 days (without notifications)7-10 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/aNANA
Sizen/an/an/aNANA
Touchn/aNA
Typen/aLEDLEDOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM2 ATM1 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aNANA
Apps
Music

All Wearables