Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Casio WSD-F20A vs. Polar Loop vs. Fitbit Inspire HR

 
Flex 2
ZenWatch 3
WSD-F20A
Loop
Inspire HR
 FitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$100$229$399$100$99
Release20162017201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours1 day5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a400 x 400320 x 320NA139 x 60
Sizen/a1.39 inches1.32 inchesNA1.4 inches
Touchn/a
TypeLEDAMOLEDLCDLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Wear OSNAFitbit OS
Apps
Music

All Wearables