Palmprint is also a type of fingerprint. This hand-swiping service launched by Amazon is a very novel non-contact payment method that authenticates the palmprint, because the palmprint is a fingerprint. A type of palm print, so he can ensure that there is no identical palm print in the world. In addition to payment, the scan of this palm print can be used for identity distinction, such as membership cards. ticket. All can use this technology. However, this technology also needs to be matched with the corresponding terminal. With such a terminal, it is possible to perform hand brushing services. According to statistics, the system's error resolution is within 1 part per million. After shopping, put your palm on the corresponding terminal at the door or during checkout to complete the payment. Amazon's system only takes 0.3 seconds, which greatly speeds up the payment time. Many of our companies now use face recognition. Compared with face recognition, hand recognition is a more privacy-friendly and friendly way, because long text is more private than other features, and it is based on the texture of the entire palm. This hand-swiping technology can identify people not by their face but only by the characteristics of their palm prints. It can effectively protect people's privacy and use other technologies such as video, such as AI synthesis, to get through. Moreover, this time Amazon's innovative technology will not only record palmprint information, but also include vein patterns under the skin tissue, so it can ensure that the leader's information is unique and cannot be copied. In this way, consumers can bind their bank cards to their palm prints, and only need to extend their palms to verify payment when checking out. Therefore, the advantages of brushing services are very clear and clear. The disadvantage is also very clear, that is, it needs to be promoted and the terminal identified. Without this terminal, it would be impossible to promote hand brushing services. As for whether this terminal can rise in China, whether it can be used in China, and whether it can be promoted domestically, it will face a large number of subsequent problems, so the domestic mobile phone swiping service is still waiting to be seen.