No matter how goods or services are marketed, they should follow the requirements of relevant laws and regulations such as the Electronic Commerce Law and the Consumer Protection Law.

It's best to compare the prices. If the price difference is too big, it is not recommended to buy. If it is not a fake, it is estimated that there will be defects. If it is sold at a low price, it is best to ask clearly, such as after-sale, electronic invoice (if it can be opened).