Polar M400 vs. Samsung Gear S2 vs. Misfit Ray vs. Apple Watch Series 2 vs. Fitbit Alta HR

 
M400
Gear S2
Ray
Watch Series 2
Alta HR
 PolarM400Remove Buy NowSamsungGear S2Remove Buy NowMisfitRayRemove Buy NowAppleWatch Series 2Remove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$200$300$100$269$150
Release20142015201620162017

Activity & Fitness

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

Battery

Duration8 hours to 30 days2-3 days6 months18 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a360 x 360n/a340 x 272 or 390 x 312128 x 36
Sizen/a1.2 inchesn/a1.5 inches or 1.65 inches1.4 inches
Touchn/a
Typen/aSuper AMOLEDLEDAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATM5ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenn/aWatch OS
Apps
Music

All Wearables