Looks like anyone wanting to partake in the Phuket "sandbox" model will be tracked with both the More Chana App.....
AND a GPS wristband monitor.
Phuket readies for 'Sandbox'While staying in Phuket during the mandatory 14-day period, their precise locations will be tracked via the global positioning system (GPS) feature on an English version of Mor Chana, as well as a location-tracking wristband.