Polar Loop 2 vs. Huawei Watch 2 vs. Casio WSD-F20A vs. Apple Watch Series 4 vs. Fitbit Versa 2

 
Loop 2
Watch 2
WSD-F20A
Watch Series 4
Versa 2
 PolarLoop 2Remove Buy NowHuaweiWatch 2Remove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 4Remove Buy NowFitbitVersa 2Remove Buy Now

Basic Info

Suggested Price$120$350$399$329$199
Release20152017201820182019

Activity & Fitness

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

Battery

Duration8 days (without notifications)48 hours1 dayNot Yet5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a480 x 480320 x 320384 x 480300 x 300
Sizen/a1.38 inches1.32 inches1.78 inches1.34 inches
Touch
TypeLEDP-OLEDLCDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP685 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Wear OSWatch OS 5Build-in
Apps
Music

All Wearables