The Xbox Series held up better than expected staying above 100k and declining a bit less than 50% so it's not dead dead in the US yet but that doesn't change the overall picture really. Another price increase should happen and when it does that'll be the end of sales being above 100k. The PS5 held up well though its weekly sales are a fair bit lower than the PS4's in January 2019 which is a sign that the gap could keep increasing until the last stretch of the year even if a price increase doesn't happen till next year.

It's a similar story with the Switch 2 selling less than the Switch 1 compared to January 2018 so the slowdown that happened in the last stretch of last year seems like it'll continue and it doing better than the Switch 1 in Japan this year might not be enough to make up for lower sales elsewhere. It's still selling well though but a price increase could hurt it a lot.

For the Switch 1 it's continuing to decline sharply and is much lower than the DS's January 2012 sales and it only sold 3m in total that year. Things are a bit murky in Japan currently but it's collapsing too fast in the west for that to matter much at this point. Overall not a great start to the year but not bad by any means. This is a year where things probably won't be that interesting sales wise till the last 2-3 months with GTA 6 and likely Pokemon gen 10 causing a huge holiday season.

There’s also the rest of Asia. PS5 dominated Non-Japan Asia according to these sales estimates.

Xbox is becoming even more US centric even if sales aren't good anywhere. Historically the US accounts for ~50% of worldwide sales for Xbox, but in January the US accounted for 60.7% of all Xbox Series consoles sold. Americas accounted for 75.9%. 

In Europe, if it wasn't for the UK the Xbox Series would look far worse. We have Xbox Series selling an estimated 10.6K in the UK, which is 53.9% of the total Europe estimates.

The point is that the only way PS5 outsells Switch 2 WW is if it outsells Switch 2 in the US/Europe by many millions of units this year, Switch 2 has already shown last year that it can outsell the PS5 in the US market, so PS5 hopes mostly rest on Europe. The non Japan Asian market is a fairly small console market, with a big majority of console sales WW coming from NA, Europe and Japan.

The PS5 sold over 180k units in Non-Japan Asia in January. The Switch 2 sold 50k. Thats a significantly territory now, and it’s a growing market. The PS5 has another big Chinese game coming out this year—Phantom Blade Zero.

But we are talking about sales WW this year, its unlikely that the non Japan Asian console market will become so much bigger in 1 year that it can help PS5 overtake Switch 2 in WW sales this year, that depends almost fully on sales in NA, Europe and Japan. Switch 2 will already get a large boost in sales in March just from Pokopia, taking its monthly sales in Japan from over 300k to over 500k or even more most likely. Europe is the place PS5 is most dependant on, and i think PS5 will continue to outsell Switch 2 there, the question is more if any of Nintendo's games can close the gap a little to PS5 in Europe, if they are able to do that then the WW sales are a done deal, because PS5 is done in Japan for the most part.

OK, let me try to explain this to you as clearly as possible.

January sales estimates:

PS5 lead over S2 in NA is 9.1k

PS5 lead over S2 in Europe is 108.4k

PS5 lead over S2 in Europe+NA is 117.5k

PS5 lead over S2 in Asia(excluding Japan) is ~130k

i.e. the PS5 advantage in Non-Japan Asia is bigger than USA and Europe combined. This leads to the clearly logical conclusion that Asia is incredibly important to the PS5 sales, and not just Europe and USA.