TomTom Spark vs. Polar Loop 2 vs. Casio WSD-F20A vs. Garmin Forerunner 235 vs. Apple Watch Series 4

 
Spark
Loop 2
WSD-F20A
Forerunner 235
Watch Series 4
 TomTomSparkRemove Buy NowPolarLoop 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$150$120$399$299.99$329
Release20152015201820172018

Activity & Fitness

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

Battery

Durationn/a8 days (without notifications)1 day9 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320215 x 180384 x 480
Sizen/an/a1.32 inches1.23 inches1.78 inches
Touch
TypeLCDLEDLCDMIPMicroLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM5 ATM5 ATMNot Yet

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aWear OSWatch OS 5
Apps
Music

All Wearables