Face unlock is a common and very important feature for a smartphone. It helps to keep this phone secure by using face structure. Nowadays, almost all smartphones in mid-budget or premium budgets have a face unlock and recognition feature. Oppo Reno7 5G (China) also supports this feature.
Oppo Reno7 5G (China) has many features, and the face unlocks one of them. You can unlock your phone much quicker by using your face structure and keeping your phone safe and secure. This is a nice feature.