Polar M400 vs. Microsoft Band 2 vs. Misfit Ray vs. Sony SmartBand 2 vs. Fitbit Flex

 
M400
Band 2
Ray
SmartBand 2
Flex
 PolarM400Remove Buy NowMicrosoftBand 2Remove Buy NowMisfitRayRemove Buy NowSonySmartBand 2Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$250$100$130$100
Release20142015201620152013

Activity & Fitness

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

Battery

Duration8 hours to 30 days48 hours (without GPS)6 months2 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/a320 x 128n/an/aNA
Sizen/a1.36 inchesn/an/aNA
Touchn/an/aNA
Typen/aCapacitative TFTLEDn/aLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX75 ATMIP581 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/an/aNA
Apps
Music

All Wearables