You can pay for travel using biometrics at two St. Petersburg metro stations.

According to Governor Alexander Beglov, quoted by the TV channel "78", this was an important step in improving the comfort and speed of passenger service, and the city began a new stage of innovation in the public transport system. Beglov promised the appearance of biometric payments at other metro stations.
In order to use this service, passengers must register in the system and link their biometric data to a bank card. In order to gain access to the passage, you only need to approach a special turnstile with a camera with face recognition function. Payment is made automatically.
Переведено сервисом «Яндекс Переводчик»