Famitsu Sales: Week 37, 2020 (Sept 07 - Sep 13)

[src]

Wyrdness said:

src said:
MHW did 3.5 -4 million.

Considering the series's past, with neither 3DS or SW entries showing this breakout factor, I expect something to the series usual performance: 3.5 - 5 million.

MHW did 2.8m it sold less than the prior entries on 3DS and PSP.

https://www.gematsu.com/2019/02/famitsu-2018-japan-video-game-sales-report

Physical only. MHW digital was already near 700k in its first few weeks. The director later also said MHW was able to retain the JP audience from previous games, so I'm assuming its closer to 4 million than 3.5.