https://wccftech.com/nintendo-switch-outsells-ps2-japan/

When the Nintendo Switch first hit the market, the company quickly declared it was their fastest-selling console ever, but those boasts weren’t based on a whole lot of data – the “fastest-selling” crown was awarded after only two days. How has the Switch held up since? The answer is “very well,” at least in Japan.

According to the most recent Media Create sales data, the Switch has sold more units in its first 10 months on the Japanese market than any other console, ever. That includes all Nintendo and Sony consoles (Microsoft isn’t really a factor there). The Switch has narrowly edged out the PlayStation 2 to claim the fastest-selling crown, moving 3,258,000 units from March till December, compared to around 3,017,000 units for the PS2 (the PS2 launched on March 4 in Japan, while the Switch launched on March 3, so it’s a fair comparison).