You can read the complete article and Analysis here:
PS4 vs PS3 in Japan – VGChartz Gap Charts – November 2019
PS4 Vs. PS3 Japan:
Gap change in latest month: 13,769 – PS3
Gap change over last 12 months: 235,758 – PS3
Total Lead: 97,924 – PS4
PlayStation 4 Total Sales: 8,510,406
PlayStation 3 Total Sales: 8,412,482
This is a super close one, and hence very interesting to watch. I feel like PS3 will win in the end.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.