Polar Loop 2 vs. Garmin Forerunner 935 vs. Casio WSD-F20A vs. Garmin Vivosmart 3 vs. Apple Watch Series 4

 
Loop 2
Forerunner 935
WSD-F20A
Vivosmart 3
Watch Series 4
 PolarLoop 2Remove Buy NowGarminForerunner 935Remove Buy NowCasioWSD-F20ARemove Buy NowGarminVivosmart 3Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$120$500$399$139.99$329
Release20152017201820172018

Activity & Fitness

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

Battery

Duration8 days (without notifications)Up to 2 weeks1 day5 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240320 x 32064 x 128384 x 480
Sizen/a1.2 inches1.32 inchesNA1.78 inches
Touch
TypeLEDLCDLCDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM5 ATM5 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatch OS 5
Apps
Music

All Wearables