Does Face ID work with glasses
Learn about Face ID's advanced technology
Learn how Face ID can help protect the data on your iPhone and iPad Pro.
Many aspects of our digital life are stored on the iPhone and iPad, and it is important to protect this information. Just as Touch ID revolutionized authentication using fingerprints, Face ID revolutionized authentication using facial recognition. With the help of the state-of-the-art TrueDepth camera system and its advanced technologies, which allow an exact mapping of the geometry of your face, Face ID enables intuitive and secure authentication.
A quick glance at the display is enough for Face ID to securely unlock the iPhone or iPad Pro. You can also use Face ID to authorize purchases from the iTunes Store, the App Store, and Apple Books, and to authorize payments with Apple Pay. Developers may even allow you to sign in to their apps with Face ID. Apps that support Touch ID automatically support Face ID as well.
Face ID is available on iPhone X and later and iPad Pro models with the A12X Bionic chip.
The technologies behind Face ID are some of the most innovative hardware and software we have ever created. The TrueDepth camera captures accurate facial data by projecting and analyzing over 30,000 invisible points to create a depth map of the face. It also records an infrared image of your face. Part of the neural engine of the A11, A12 Bionic, A12X Bionic and A13 Bionic chips - protected by the Secure Enclave - converts the depth map and the infrared image into a mathematical representation and compares this representation with the registered facial data.
Face ID automatically adapts to changes in your appearance, e.g. B. on applied makeup or beard growth. Does your appearance change significantly, e.g. For example, by shaving off a beard, Face ID can confirm your identity via your code before it updates your face data. Face ID was developed in such a way that it also works with hats, scarves, glasses, contact lenses and many sunglasses that are worn. In addition, it works indoors, outdoors, and even in complete darkness.
To use Face ID, you must first register your face. You can do this during the initial setup process or later by going to Settings> Face ID & Passcode. To unlock your device with Face ID, just look at it. For Face ID, the TrueDepth camera must be able to capture your face, regardless of whether the device is lying on a surface or whether you are holding it in a natural position in your hand. The TrueDepth camera has a field of view similar to that used when taking a photo or making a FaceTime call with the front camera. Face ID works best when you hold the device within arm's length from your face (10 to 20 inches from your face).
The TrueDepth camera is activated intelligently, such as tapping to wake up the screen, an incoming message waking up the screen, or lifting to wake up your iPhone. Every time you unlock your device, the TrueDepth camera recognizes you by capturing accurate depth data and an infrared image. This data is compared with the stored mathematical representation in order to carry out the authentication.
Security is paramount for all of us so that the data on our devices is protected. We have taken some important measures to protect your data - just like we did with Touch ID. To achieve a secure authentication solution, Face ID uses the TrueDepth camera and machine learning. Face ID data - including mathematical representations of your face - is encrypted and protected with a key that is only available in the Secure Enclave.
The probability that a random person in the population can look at your iPhone or iPad Pro and unlock it with Face ID is around 1 in 1,000,000 with a registered appearance. As an additional measure of protection, Face ID only allows five unsuccessful attempts before a code is requested. The statistical probability is different for twins and siblings who look very similar to you, as well as for children under the age of 13, because their facial features have not yet been fully developed. If you have any concerns about this, you should use a code for authentication.
Face ID compares it with depth data that cannot be found on printed or digital two-dimensional photos. And thanks to the sophisticated anti-spoofing neural networks, attempts at fraud using masks or other techniques are detected. Face ID even determines if you're paying attention by checking that your eyes are open and your attention is focused on the device. This makes it more difficult for others to unlock your device without your knowledge (for example, when you are sleeping).
To use Face ID, you need to set a passcode on the device. You'll need to enter your code for an additional security check if:
- The device just turned on or restarted.
- The device has not been unlocked for over 48 hours.
- The passcode was not used to unlock the device in the last six and a half days, and the device was not unlocked with Face ID in the last four hours.
- The device has received a remote lock command.
- Five attempts to match a face have failed.
- After switching off or "Emergency SOS" has been initiated by pressing one of the volume buttons and the side button at the same time for 2 seconds.
If your device is lost or stolen, you can use Find My iPhone's Lost Mode to prevent your device from being unlocked using Face ID.
Privacy is extremely important to Apple. Face ID data - including math representations of your face - is encrypted and protected by the Secure Enclave. This data is refined and updated as you use Face ID to improve your user experience, including: then when you successfully authenticate yourself. Face ID also updates this data after only finding an incomplete match, but then unlocking the device with a code. Face ID data always remains on your device and is never backed up to iCloud or anywhere else.
If you choose to register for Face ID, you can customize how the feature is used and turn it off at any time. For example, if you don't want to use Face ID to unlock your device, go to Settings> Face ID & Passcode> Use Face ID, then turn off Unlock iPhone or Unlock iPad. To turn off Face ID, go to Settings> Face ID & Passcode, then tap Reset Face ID. This will erase the Face ID data from the device, including any math representations of your face. If you choose to erase or reset your device using Find My iPhone, or clear all content and settings, all Face ID data will be erased.
Even if you don't sign up for Face ID, the TrueDepth camera is smartly activated to support detection features like dimming the display when you're not looking at the device or turning down the volume of alerts when you are looking at the device Device. For example, if you are using Safari, your device will check that you are looking at the device and turn off the screen if you are not. If you don't want to use these features, you can go to Settings> Face ID & Passcode and turn off Attention Sensitive Features.
You can enable "Face ID" for authentication in supported apps. Apps are only informed whether the authentication was successful. Apps cannot access Face ID data associated with the registered face.
The iPhone and iPad Pro and the TrueDepth camera system have been thoroughly tested and meet international safety standards. The TrueDepth camera system can be used safely under normal conditions of use. The system does not cause eye or skin damage due to its low performance. It is important to know that the infrared transmitters could be damaged during repair or disassembly, so your device should always be repaired by Apple or an authorized service provider. The TrueDepth camera system includes functions for detecting tampering. If manipulation is detected, the system can be deactivated for security reasons.
When looking through certain types of cameras, you may notice light escaping from the TrueDepth camera. This is normal as some cameras can detect infrared light. Some cameras also detect faint rays of light from the TrueDepth camera when viewed in a very dark room. This is normal in very dark places.
Accessibility features are an integral part of Apple products. Users with physical limitations can choose Accessibility Options during registration. With this setting, not all head movements have to be performed in order to capture the different angles. This setting is still safe to use, but requires more consistency in how you look at your iPhone or iPad Pro.
Face ID also offers an accessibility feature that helps people who are blind or have poor sight. If you don't want Face ID to ask you to look at your iPhone with your eyes open, you can go to Settings> General> Accessibility and turn off Face ID Attention Checking. This setting is automatically turned off if you turn on VoiceOver during the initial setup.
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