Polar V800 vs. Sony SmartWatch 3 vs. Diesel On Full Guard 2.5 vs. Fitbit Versa 2 vs. Amazfit T-Rex

 
V800
SmartWatch 3
On Full Guard 2.5
Versa 2
T-Rex
 PolarV800Remove Buy NowSonySmartWatch 3Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowFitbitVersa 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$470$250$325$199$140
Release20142014201820192019

Activity & Fitness

Calories
Cycling (Bicycling)n/a
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 30 days2 days4 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320454x454300 x 300360 x 360
Sizen/a1.6 inches1.39 inches1.34 inches1.3 inches
Touch
Typen/aTFT LCDAMOLEDAMOLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP683 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWear OSBuild-inBuild-in
Apps
Music

All Wearables