Pebble Time Round vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Pebble Core vs. Apple Watch Series 4

 
Time Round
Flex 2
WSD-F20A
Core
Watch Series 4
 PebbleTime RoundRemove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowPebbleCoreRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$200$100$399$99$329
Release20152016201820162018

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration2 days5 days1 dayNANot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320NA384 x 480
Sizeroundn/a1.32 inchesNA1.78 inches
Touchn/aNA
Typee-paperLEDLCDNAMicroLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM5 ATMNANot Yet

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemPebble OSn/aWear OSNAWatch OS 5
Apps
Music

All Wearables