Even though the chunky notch of the Mate 30 Pro is going away in favor of a dual punch hole, the Huawei P40 Pro and P40 Premium will reportedly retain the front facing 3D ToF sensor for secure face unlock. This will be used to authorize payments as it's more secure than plain camera-based face unlock. The extra hardware made the dual punch hole slightly wider than it is on the Huawei P40 as you can see in these renders shared by @evleaks: Huawei P40 Pro • Huawei P40 The P40 Pro and P40 Premium will pack a 32MP selfie camera plus the ToF sensor in the punch hole. The gesture...
Source: https://www.gsmarena.com/huawei_p40_pro_and_premium_set_to_retain_front_3d_sensor_to_secure_payments-news-42173.php
