First, fingerprint identification can be done with one hand without a camera. Face recognition requires that the face is facing the camera and the light is brighter. Some mobile phones can't be unlocked by face recognition when the light is dim, which will delay the use of the mobile phone. However, fingerprint recognition can be unlocked without a camera, just press the fingerprint upwards, which makes fingerprint recognition more convenient.
Second, fingerprint recognition can be unlocked when face recognition is inconvenient, which is very convenient. With the development of the epidemic, people put on masks. Sometimes, if they use face recognition mobile phones, they have to take off their masks, which will increase the risk of getting sick. This problem won't arise if fingerprint identification is used. Fingerprint identification can be done by hand. As long as the hand is dry, it is convenient to pay for fingerprint identification. Therefore, fingerprint recognition is more useful and convenient to use than face recognition in some cases.
Third, fingerprints are unique, and fingerprint recognition is safer than face recognition. Fingerprint is unique to human beings, even the fingerprints of twins will be different, so fingerprint identification is very safe. Some face recognition phones can't recognize twins or 3D printed faces, so the relative security of face recognition is not as good as fingerprint recognition.
If you have any other views on fingerprint recognition and face recognition, please leave a message to discuss.