Sony SmartBand 2 vs. Amazfit Arc vs. Casio WSD-F20A vs. Apple Watch Series 4

 
SmartBand 2
Arc
WSD-F20A
Watch Series 4
 SonySmartBand 2Remove Buy NowAmazfitArcRemove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$130$69.99$399$329
Release2015201620182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days20 days1 dayNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a72 x40320 x 320384 x 480
Sizen/a0.42 inches1.32 inches1.78 inches
Touchn/a
Typen/aOLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP58IP675 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatch OS 5
Apps
Music

All Wearables