Pebble Time vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Polar Loop vs. Apple Watch Series 4

 
Time
Flex 2
WSD-F20A
Loop
Watch Series 4
 PebbleTimeRemove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$150$100$399$100$329
Release20152016201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days1 day5 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution168 x 144n/a320 x 320NA384 x 480
Size1.26 inchesn/a1.32 inchesNA1.78 inches
Touchn/a
Typee-paperLEDLCDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aWear OSNAWatch OS 5
Apps
Music

All Wearables