Chinese smartphone maker Honor has launched a handset with a motorised robotic camera that nods back at users, betting that its interactive hardware will spark growth in a cooling global market for the devices.The new Robot Phone, released on Wednesday, features a three-axis mechanical gimbal with four degrees of motion, allowing for video stabilisation and interaction via nodding and tilting.Activated by a hand gesture, the gimbal camera unfurls from the back of the device – a mechanism that...