Pebble Time vs. Pebble Time Round vs. Casio WSD-F20A vs. Jaybird Reign vs. Amazfit T-Rex

 
Time
Time Round
WSD-F20A
Reign
T-Rex
 PebbleTimeRemove Buy NowPebbleTime RoundRemove Buy NowCasioWSD-F20ARemove Buy NowJaybirdReignRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$399$150$140
Release20152015201820152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2 days1 day5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/a320 x 320NA360 x 360
Size1.26 inchesround1.32 inchesNA1.3 inches
TouchNA
Typee-papere-paperLCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX75 ATMNA5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSWear OSNABuild-in
Apps
Music

All Wearables