How do I set up Face ID or Touch ID on my Apple device?

Setting up Face ID or Touch ID on an Apple device is a straightforward process, which enhances security and allows for convenient access to your device and applications. First, it is important to ensure that the device is compatible with either Face ID or Touch ID. Face ID is available on iPhone models starting from iPhone X and later, while Touch ID is featured on various models of the iPhone and iPad, as well as on the MacBook Pro and MacBook Air. To set up Face ID, begin by opening the "Settings" app, then navigate to "Face ID & Passcode." You will be prompted to enter your device passcode. Tap on "Set Up Face ID" and follow the on-screen instructions to scan your face. It typically requires two scans to capture your face from different angles for accuracy. For Touch ID, open the "Settings" app and select "Touch ID & Passcode." Again, enter your passcode when prompted. Tap on "Add a Fingerprint" and follow the instructions to place your finger on the Home button (or Power button on newer iPhone models) repeatedly until the fingerprint is fully captured. After setting up Face ID or Touch ID, you can enable these features for unlocking your device, making purchases, or using specific applications. It is advisable to check the system requirements and the procedures outlined on the official Apple website for the most current information and troubleshooting advice.