Casio WSD-F20A vs. Polar Loop vs. Garmin Forerunner 45 vs. Michael Kors Access Runway vs. Xiaomi Mi Band 4

 
WSD-F20A
Loop
Forerunner 45
Access Runway
Mi Band 4
 CasioWSD-F20ARemove Buy NowPolarLoopRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsAccess RunwayRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$399$100$199$350$25
Release20182013201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day5 days7 days1 day20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320NA208 x 208390 x 390120x240
Size1.32 inchesNA1.04 inches1.19 inches0.95 inches
Touch
TypeLCDLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNABuilt-inWear OSAMAZFIT OS
Apps
Music

All Wearables