Motorola Moto 360 (2nd Gen) vs. Motorola Moto 360 Sport vs. Polar M400 vs. Xiaomi Mi Band 2 vs. Fitbit Flex

 
Moto 360 (2nd Gen)
Moto 360 Sport
M400
Mi Band 2
Flex
 MotorolaMoto 360 (2nd Gen)Remove Buy NowMotorolaMoto 360 SportRemove Buy NowPolarM400Remove Buy NowXiaomiMi Band 2Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$199$200$23$100
Release20152016201420162013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Stepsn/a
Swimn/a

Battery

Duration1.5 daysn/a8 hours to 30 days20 hours5 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

Color
Resolution360 x 325 or 360 x 330n/an/an/aNA
Size1.37 inches or 1.56 inches1.37 inchesn/a0.42 inchesNA
TouchNA
TypeLCDLCDn/aOLEDLED

Functions

Audio SpeakerBluetoothn/aAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water ResistanceIP67n/a3 ATMIP671 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wearn/an/aNA
Apps
Musicn/an/a

All Wearables