Biometric system for screen unlock introduced
Apple introduced the capacitive fingerprint sensor for the screen unlock mechanism with the launch of the iPhone 5s in 2013. Called TouchID, the fingerprint sensor was embedded under the home button, which was one of the differentiating features of the iPhones. Apple was not the first to use fingerprint sensors in a smartphone, but the company made it mainstream in the smartphone space. From Samsung to Huawei, Xiaomi, and OnePlus, every smartphone brand followed Apple on the fingerprint scanner tech for screen unlock mechanism.
Another form of biometric security was face recognition (FaceID), which Apple introduced with its tenth anniversary special iPhone X in 2017. It replaced the TouchID and made way for an all-screen design that continues even in the new iPhones. Other smartphone brands followed suit and introduced a face recognition biometric system similar to Apple's FaceID for the screen unlock mechanism.