What you want to ask is, what is the e-commerce product with the highest return rate? The e-commerce product with the highest return rate is the mobile phone. Because the quality of online shopping mobile phones is difficult to guarantee, it is easy to buy fake and shoddy mobile phones, which will be returned directly, leading to a sharp increase in the return rate. Moreover, the number of mobile phones purchased is huge, resulting in a large mobile phone base and the highest return rate. Therefore, the e-commerce product with the highest return rate is the mobile phone. Cell phones. They're all called cell phones.