Pebble Time Round vs. Casio WSD-F20A vs. Pebble Core vs. Polar Loop vs. Amazfit T-Rex

 
Time Round
WSD-F20A
Core
Loop
T-Rex
 PebbleTime RoundRemove Buy NowCasioWSD-F20ARemove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$399$99$100$140
Release20152018201620132019

Activity & Fitness

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

Battery

Duration2 days1 dayNA5 days20 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NANA360 x 360
Sizeround1.32 inchesNANA1.3 inches
TouchNA
Typee-paperLCDNALEDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATMNA2 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemPebble OSWear OSNANABuild-in
Apps
Music

All Wearables