Sony SmartWatch 3 vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Amazfit GTR

 
SmartWatch 3
Flex 2
WSD-F20A
GTR
 SonySmartWatch 3Remove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$250$100$399$199
Release2014201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days1 day24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution320 x 320n/a320 x 320454 x 454
Size1.6 inchesn/a1.32 inches1.39 inches
Touchn/a
TypeTFT LCDLEDLCDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aWear OSBuild-in
Apps
Music

All Wearables