Loads noise boot or hex probe into a phone-sized screen and runs the checks from both phone checks there. The screen is the real size of the phone in CSS pixels, so layout, wrapping and scrolling behave as they would on it. It can't copy a phone's processor, touch input or keyboard: step timings and freeze lengths are this computer's, multiplied by the phone-speed setting as an estimate (frame rates are as measured here), and the checks marked "real phone only" still need a real one. Nothing is uploaded.