Pebble Time Round vs. Fitbit Charge 2 vs. Casio WSD-F20A vs. Pebble Core vs. Amazfit T-Rex

 
Time Round
Charge 2
WSD-F20A
Core
T-Rex
 PebbleTime RoundRemove Buy NowFitbitCharge 2Remove Buy NowCasioWSD-F20ARemove Buy NowPebbleCoreRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$150$399$99$140
Release20152016201820162019

Activity & Fitness

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

Battery

Duration2 days5 days1 dayNA20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 320NA360 x 360
Sizeroundn/a1.32 inchesNA1.3 inches
Touchn/aNA
Typee-paperOLEDLCDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX7n/a5 ATMNA5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemPebble OSn/aWear OSNABuild-in
Apps
Music

All Wearables