https://wccftech.com/new-iphone-ipad-models-to-feature-smaller-face-id-sensors/

With the notch size on the iPhone remaining unchanged for four generations, it was high time Apple made a change here. According to the latest report, the company could start using smaller Face ID sensors on upcoming iPhone and iPad models. This will be advantageous for Apple in a number, ways, and one of them will allow the technology giant to save production costs.

A new report from DigiTimes says that Apple is aiming to reduce the VCSEL chip size used in the Face ID scanner. This will help to free up internal space, especially on smaller devices like the upcoming iPhone 13 series, while also saving Apple millions in production costs. A smaller VSCEL will also allow the introduction of newer technologies, but DigiTimes was not keen on providing additional info.