Switch can not register to play the fitness ring, and the two are complementary. After buying the fitness ring, you need to buy the software "Fitness Ring Adventure", and you need to prepare the switch host, monitor, yoga mat and so on. In order to have a complete game experience. Many people want to gain weight through it, especially those who only play fitness circle games. The cost of buying a mainframe is about 2000+, and there is a box with TV in the switch, so you don't need to buy it separately. Introduction of fitness ring: Fitness ring is a somatosensory RPG (role-playing game) designed by Nintendo for Switch. This set of equipment includes the game body, a "leg strap" and an elastic fitness ring -Con. In the game, players become brave. Whether they are going forward, fighting monsters, doing tasks or shopping, they need to make corresponding actions in reality. Moreover, the turn-based combat mode can better grasp the rhythm of the game, and even shut down the host without pressing the pause button. There is also a backstage mode, which can exercise while watching TV, and the human-computer interaction is very humanized.