The Apple Watch Series 4 is made with a re-engineered Digital Crown with haptic feedback and electrical and optical heart sensors. Improve your health and track your workouts with the Apple Watch Series 4.
Product Features:GPSOver 30% larger displayElectrical and optical heart sensorsDigital Crown with haptic feedback50% louder speakerS4 SiP with faster 64-bit dual-core processorImproved accelerometer and gyroscope for fall detectionSwimproofwatchOS 5Aluminum caseIncludes watch, user manualWarranty: 1 year limited(Model MU6D2LL/A)