Relatively speaking, Taobao and Pinduoduo have more kinds of goods. You can have more choices. And Taobao's after-sales service should be relatively perfect, but one advantage of Pinduoduo is that it is relatively cheap, and many things are very cheap. See which one you need. If you want to have more choices and the money is not too bad, you can buy it on Taobao. If you want to save more money. Then buy it on Pinduoduo. Each has its own advantages, which one to choose depends on your actual situation.