A few months ago, a box was left outside the door of 34-year-old Yu Ting Xu’s* apartment in Beijing. Inside, there was an electronic monitoring wristband and a demand that she wear the wristband at all times as part of the fight against COVID-19 in her residential area.
While telling her story over a video call, Yu shuffles about in the background. When she returns to her screen, she is holding up the wristband, which looks like a smartwatch but has a plain white plastic surface instead of a display.
