Casio WSD-F10 vs. Polar M400 vs. Fitbit Versa vs. Pebble Time 2 vs. Amazfit T-Rex

 
WSD-F10
M400
Versa
Time 2
T-Rex
 CasioWSD-F10Remove Buy NowPolarM400Remove Buy NowFitbitVersaRemove Buy NowPebbleTime 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$500$200$199.99$199$140
Release20162014201820162019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/an/a
Oxygenn/a
Sleepn/a
Steps
Swimn/a

Battery

Durationn/a8 hours to 30 days4 days10 days20 days
Rechargeable

Compatibility

Android
iOSn/a
Windows Phonen/an/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetoothn/a
Cellularn/a
GPS
NFCn/a
Wi-Fin/a

Display

Color
Resolutionn/an/a300 x300NA360 x 360
Sizen/an/a1.34 inchesNA1.3 inches
Touchn/a
TypeLCDn/aOLEDe-paperAMOLED

Functions

Audio Speakern/aAlerts only
Clock
Phonen/a
Vibration
Voicen/a

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATM3 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/aPebble OSBuild-in
Appsn/a
Musicn/a

All Wearables