Link to the VGChartz article here.
PS5 vs PS4 Sales Comparison in Japan - May 2023
This monthly series compares the aligned Japanese sales of the PlayStation 5 and PlayStation 4.
The PlayStation 5 launched in November 2020 in Japan, while the PlayStation 4 launched in February 2014. This does mean the holiday periods for the two consoles do not lineup.



PS5 Vs. PS4 Japan:
Gap change in latest month: 44,063 - PS5
Gap change over last 12 months: 603,699 - PS5
Total Lead: 535,119 - PS5
PlayStation 5 Total Sales: 3,853,766
PlayStation 4 Total Sales: 3,318,647
June 2023 is the 32nd month the PlayStation 5 has been available for. In the latest month, the gap grew in favor of the PlayStation 5 when compared to the aligned launch of the PlayStation 4 by 44,063 units.
In the last 12 months, the PS5 has outsold the PS4 by 603,699 units. The PS5 is currently ahead by 535,119 units.
The 32nd month for the PS5 in Japan is June 2023, while for the PS4 it is September 2016. The PS5 has sold 3.85 million units, while the PS4 sold 3.32 million units during the same timeframe. The PS4 sold current PS5 sales in month 35.
The PS4 crossed 4 million in Japan in month 35, 5 million in month 41, and 6 million in month 47. The PS4 has sold 9.63 million units to date. The PS5 is currently 5.78 million units behind the lifetime sales of the PS4 in Japan.