Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Withings Activite Pop vs. Garmin Forerunner 45 vs. Xiaomi Mi Band 4

 
Moto 360 (2nd Gen)
M400
Activite Pop
Forerunner 45
Mi Band 4
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowWithingsActivite PopRemove Buy NowGarminForerunner 45Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$300$200$150$199$25
Release20152014201520192019

Activity & Fitness

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

Battery

Duration1.5 days8 hours to 30 days8 months7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/an/a208 x 208120x240
Size1.37 inches or 1.56 inchesn/a1.3 inches1.04 inches0.95 inches
Touch
TypeLCDn/aAnalogLCDAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aBuilt-inAMAZFIT OS
Apps
Musicn/a

All Wearables