Polar V800 vs. Garmin Vivofit 3 vs. Casio WSD-F20A vs. Amazfit T-Rex vs. Apple Series 6

 
V800
Vivofit 3
WSD-F20A
T-Rex
Series 6
 PolarV800Remove Buy NowGarminVivofit 3Remove Buy NowCasioWSD-F20ARemove Buy NowAmazfitT-RexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$470$100$399$140$399
Release20142016201820192020

Activity & Fitness

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

Battery

Duration13 hours to 30 days1 year1 day20 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a64 x 64320 x 320360 x 360384 x 480
Sizen/a0.55 inches1.32 inches1.3 inches40mm
Touch
Typen/an/aLCDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance3 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSBuild-inWatchOS 5
Apps
Music

All Wearables