Image of a Watch Series 4
Image of a WSD-F20A
Image of a Inspire HR
Image of a Vivoactive HR
Image of a Vivosmart 4
 AppleWatch Series 4Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitInspire HRRemove Buy NowGarminVivoactive HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$329$399$99$250$130
Release20182018201920162018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationNot Yet1 day5 days13 hours to 8 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution384 x 480320 x 320139 x 60148 x 20548 x 128
Size1.78 inches1.32 inches1.4 inches1.38 inches0.74 inches
Touch
TypeMicroLEDLCDOLEDn/aOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceNot Yet5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OS 5Wear OSFitbit OSn/a
Apps
Music

All Wearables