In Japan, Sony's PlayStation 5 has sold over 2 million hardware units since its November 2020 launch.
As reported by Siliconera, per publication Famitsu, the console reached the sales figure after nearly 102 weeks.
The site notes that the PlayStation 4 reached 2 million units sold after 90 weeks.
source https://www.gamesindustry.biz/playstation-5-sells-2-million-consoles-in-japan
