Yes, many modern iPad models, particularly the iPad Pro series and newer standard iPads, feature Face ID for secure unlocking, app sign-in, and purchases, working like it does on newer iPhones by scanning your face, but you must set it up in Settings > Face ID & Passcode. Face ID requires a passcode as a backup and is available on Pro models from certain generations (like 3rd gen iPad Pro onwards) and some standard iPads, though Touch ID (fingerprint) is still common on other models.
Use Face ID on your iPhone or iPad Pro
Because Apple didn't include the required True Depth Camera for Face ID to work until iPad 11 and 12.9 was introduced in 2018. There is no way to make an iPad which does not have the required True Depth Camera Face ID compatible.
Face ID is not available on iPad (10th Generation). You can use Touch ID on the lock button to unlock your iPad.
iPad Air does not feature FaceID or facial recognition. The only iPad models that have FaceID are iPad Pro - as these are the only iPad models that incorporate the front TrueDepth camera sensor-array: iPad Pro 11" (all models)
Apple only makes Face ID available on the iPad Pro and most iPhone models. Other iPads use some form of Touch ID while Macs use Touch ID in the Magic Keyboard.
The short answer is no, it isn't possible for someone to unlock an iPhone through Face ID using a picture. Not even a close-up photo will unlock your device. This is because Apple devices include several security features to make it difficult for anyone to unlock iPhone devices without the user's physical face.
iPad
If you didn't set up Face ID when you first set up your iPad, go to Settings > Face ID & Passcode > Set up Face ID, then follow the onscreen instructions.
Face ID fails to recognize difference between twins
Apple's foolproof Face ID system looks like it has met its match. Even though Face ID is supposed to faster on the iPhone XS and XS Max, it appears that the security system can be completely fooled by identical twins. If you've got a siblin…
The system can be used for unlocking a device, making payments, accessing sensitive data, providing detailed facial expression tracking for Animoji, as well as six degrees of freedom (6DOF) head-tracking, eye-tracking, and other features.
Check your Face ID settings
Make sure that Face ID is set up and that the features you're trying to use Face ID with are turned on.
If your device supports Face ID, you can use face recognition instead of your passcode.
Set up Face ID or add an alternate appearance
If you didn't set up Face ID when you first set up your iPhone, go to Settings > Face ID & Passcode > Set up Face ID, then follow the onscreen instructions.
3. Makeup and face painting. A face with striking makeup or paint can confuse cameras in much the same way as a mask—at least for the software. In 2010, artist Adam Harvey demonstrated with his CV Dazzle project that asymmetrical makeup and hairstyling tricks can thwart facial recognition.
What happens when your iPhone gets hacked? If your iPhone gets hacked, the hacker can access all of the files on your iPhone. This includes everything from your notes and photos to your text messages and apps.
Generally speaking, Touch ID may be slightly more secure than Face ID, especially if you are worried about doppelgängers (such as twins and other similar-looking family members) unlocking your mobile devices. Touch ID would be more reliable in such a situation because even identical twins have unique fingerprints.
Unlock iPad with Face ID
Apple takes user privacy seriously, especially when it comes to biometric data. Both Face ID and Touch ID rely on the Secure Enclave, a dedicated part of the iPhone's hardware that encrypts and stores sensitive information, including biometric data.
For example, if you don't want to use Face ID to unlock your iPhone or iPad, go to Settings > Face ID & Passcode, enter your passcode, then tap to turn off iPhone Unlock or iPad Unlock. To disable Face ID, go to Settings > Face ID & Passcode, enter your passcode, then tap Reset Face ID.