The Switch has been available in Japan for 24 weeks now, and has managed to move 1,436,031 units. The total would be even higher, but Switch stock has been an issue since launch. With that said, the Switch is still managing to outsell PS4 by a 2 to 1 margin. When you look at the first 24 weeks of the PS4, the system sold 653,377 units. You can see a full week-by-week breakdown here.