Acer Liquid Leap vs. Casio WSD-F20A vs. Fitbit Flex vs. Polar Loop vs. Apple Watch Series 4

 
Liquid Leap
WSD-F20A
Flex
Loop
Watch Series 4
 AcerLiquid LeapRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$90$399$100$100$329
Release20152018201320132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 to 7 days1 day5 days5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 32320 x 320NANA384 x 480
Size1 inch1.32 inchesNANA1.78 inches
TouchNA
TypeOLEDLCDLEDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX45 ATM1 ATM2 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNANAWatch OS 5
Apps
Music

All Wearables