Huawei announces its Mate 40 series smartphones with new camera features. The front camera implements an always-on vision-based user interface:

HUAWEI Mate 40 Pro and HUAWEI Mate 40 Pro+ are set to revolutionise how consumers integrate smartphones into their lives with new user-centric features including Smart Gesture Control, which allows total hands-free control of your device. Simply hover your hand over the device to wake it up or navigate your phone by swiping left, right, up and down. There is also an air press gesture for call answering.