I decided last week I'd start keeping track of the prospective PS4 and Switch Japanese sales estimates that I keep seeing repeated in these threads. The estimates are 2 million PS4 sales in Japan for 2018 and 4 million Switch sales in Japan for 2018.
Current Week: 10 (Please correct me if I'm wrong here as it will change the results slightly)
| YTD | Units Till Estimate | Average Weekly Needed | |
| PS4 | 647,945 | 1,352,055 | 32,191 |
| Switch | 535,375 | 3,464,625 | 82,491 |
I'll be keeping an update of this each week to see how each week's sales will impact the ability to reach the sales estimates from people in this thread.







