Pebble Time Steel vs. Casio WSD-F20A vs. Apple Watch Series 4 vs. Apple Watch Series 5 vs. Amazfit T-Rex

 
Time Steel
WSD-F20A
Watch Series 4
Watch Series 5
T-Rex
 PebbleTime SteelRemove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 4Remove Buy NowAppleWatch Series 5Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$399$329$329$140
Release20152018201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 days1 dayNot YetNot Yet20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144320 x 320384 x 480384 x 480360 x 360
Size1.26 inches1.32 inches1.78 inches1.78 Inches1.3 inches
Touch
Typee-paperLCDMicroLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMNot YetNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSWear OSWatch OS 5WatchOS 5Build-in
Apps
Music

All Wearables