Google has confirmed that the Face Unlock Feature of the Pixel 4 unlocks the device even if the owner's eyes are closed. However a security expert has said that this is a significant problem that can allow unauthorized access to the device. Google said in a statement: "Pixel 4 Face Unlock meets the security requirements as a strong biometric." Speaking before the launch of the awesome smartphone, Pixel product manager Sherry Lin said: "There are actually only two face authorization solutions that meet the bar for being super-secure. So, you know, for payments, that level- it's ours and Apple's."