China's obsession with QR codes

It’s no secret that China remains a leading force in the mobile payments sector thanks to the easy access of smartphones. In 2016, the transaction volume of mobile payments in China has reached RMB 35.33 trillion ($5.61 trillion), and is projected to reach RMB 295.99 trillion ($47 trillion) in 2019, according to research firm Analysys. Simply by scanning QR codes, smartphone users can pay bills and purchase goods via mobile payment apps. We walk around the streets in China to find out how mobile payments and QR code technology has changed everyday life in China—we even saw QR codes on door plates.