At a muskmelon store in Haikou in Hainan Province, customers can use artificial intelligence technology to measure the sweetness of the melons on offer, reports thepaper.cn.

Each muskmelon on display has its own certificate that indicates its level of sweetness, ranging from 90 percent, to 70 percent, to half-ripe. The measure of sweetness listed on the certificate is based on an AI-assisted add-on inside the popular Alipay payment app. Customers can upload a picture of a melon into the Alipay add-on, which then provides a report about its sweetness and ripeness.