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

 
Time
Watch
WSD-F20A
Flex
Watch Series 4
 PebbleTimeRemove Buy NowAppleWatchRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$150$349$399$100$329
Release20152015201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days18 hours1 day5 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144340 x 272 or 390 x 312320 x 320NA384 x 480
Size1.26 inches1.5 inches or 1.65 inches1.32 inchesNA1.78 inches
TouchNA
Typee-paperAMOLEDLCDLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX75 ATM1 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSWatch OSWear OSNAWatch OS 5
Apps
Music

All Wearables