Apple Watch

Yes, Apple Watch features a built-in microphone.

The Apple Watch microphone is designed to access Siri, among other functions.

Yes, Apple Watch can provide turn-by-turn navigation using Maps.

Users can ask Siri for directions on Apple Watch, and receive navigation instructions directly on their wrist.

Taptic Engine is a linear actuator inside Apple Watch. This piece of hardware taps the user on the wrist to deliver tactile feedback when interfacing the Digital Crown or Force Touch. It will also deliver a tap to help notify the user of alerts and notifications.

Yes, Apple Watch includes a specially designed sensor that uses photodiodes, LEDs, and infrared LEDs to detect the user's heart rate.

The heart rate sensor is contained on the back of the Apple Watch case, within a ceramic cover with sapphire lenses. The custom heart rate sensor can provide data to a variety of health and fitness apps, and helps monitor daily activity.

Apple Watch includes a variety of health and fitness app functions. The device tracks daily activity using a built-in custom heart rate sensor along with an accelerometer.

GPS and Wi-Fi in the iPhone paired to Apple Watch also contribute data, which measures all kinds of physical movement. Apple Watch seeks to provide a comprehensive portrait of daily activity for the user, and assist with fitness goals.