If you plan on visiting Hong Kong anytime in the near future be prepared to be tracked.  You will be required to wear a wristband that monitors your movements to make sure you are obeying all enforced movement restrictions.  For those traveling from China, they mandate a two-week self-isolation. With the spread of this coronavirus pandemic having a resurgence on the island due to the widespread influx of visitors, they are requiring all visitors to wear a wristband.  As of the end of last week (20 March), ALL travelers will be under mandatory medical surveillance and a 2-week quarantine.