Polar M400 vs. Misfit Ray vs. Withings Go vs. Apple Watch Series 2 vs. Polar Loop

 
M400
Ray
Go
Watch Series 2
Loop
 PolarM400Remove Buy NowMisfitRayRemove Buy NowWithingsGoRemove Buy NowAppleWatch Series 2Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$100$80$269$100
Release20142016201620162013

Activity & Fitness

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

Battery

Duration8 hours to 30 days6 months8 months18 hours5 days
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/an/aNA
Macn/an/aNA
Windowsn/an/aNA

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/an/an/a340 x 272 or 390 x 312NA
Sizen/an/an/a1.5 inches or 1.65 inchesNA
Touchn/an/a
Typen/aLEDE-InkAMOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM5ATM2 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/an/aWatch OSNA
Appsn/a
Music

All Wearables