What card does mi-band Nanjing Metro open?

In Nanjing subway, you can use mi frequency band to open Jiangsu traffic card function. Jiangsu Transportation Card is the official payment method of Nanjing Metro. With this card, you can take the subway conveniently and quickly and enjoy the corresponding discount. By binding Jiangsu Traffic Card with mi band, you can use the bracelet to swipe your card in and out of the station and pay for the subway, which provides a more convenient way to use the Nanjing subway without carrying a physical card.