You are the one that doesn't seem to understand.
Both MS, Sony and Nintendo produces consoles.Thus, since they all make products that cater to a similar market, they compete amongs one another.
None of the three make games for the mobile market.Sony and MS never did as far as I know, and before Pikmin Bloom, the last mobile game Nintendo made was Mario Kart Tour, and that one was clearly made because it was halfway done anyway, and they are now reutilizing stuff made for it for MK 8.
PS4 performance was already bad.10 million is just decent, and a far cry from what Sony used to do, and the PS5 has all indications that will do even worse.But software numbers are even worse, since both PS4 and PS5 barely sell games that makes into the top 10. The Switch, meanwhile, is breaking all kinds of records that previous consoles set. Nintendo read the market right, something Sony didn't do(For asian markets anyway), and managed to make a console that found gigantic success there. Its not that japanese moved away from console, its that the Sony walked away from Japan.
And that's the reality: Nintendo has been consistently been selling better than Sony and MS in most major contries. Its just batlantly obvious in Japan, where the disparity is enourmous and Sony basically walked away from that market. Nintendo managed to make a hybrid console that appeals more(for now anyways. The Switch IS 6 years old after all) to the general audience.Couple that with the best exclusives on the market by a long shot, and you can see why it's the current market leader. PS5 will eventually sell more than the Switch next year(Except Japan), but that's because the Switch is old, while the PS5 is new.
Will be interesting to see when Nintendo launches their next hardware, and kickstarts the 10th gen, and see how the market reacts.
The mobile market also refers to handhelds.
Believe PS3 is already near 3 million units with basically no availability.
Again, the market has changed in Japan, that isn't to suggest that Nintendo has eaten Sony's market share. Nintendo's sales haven't increased at all.
Nintendo's sales match previous handheld entries. That it docks to a TV doesn't make it a direct competitor to more expensive consoles with completely different target audiences.
You can tell this DIRECTLY by the comparison of PS4/Switch hardware sales compared to PS3/3DS and PS2/Gamecube/DS sales...
In fact if you combine the success of the Wii and the 3DS, you see that Nintendo has FAILED to regenerate that combined level of success... Why? Because they have a ceiling on their market base and they no longer are able to get casual NON-gamers to buy.
176 million Wii/3DS sold compared to 107 million Switches sold. Even Gamecube and DS, 175 million is larger. 110 million N64 and GBA they'll probably outdo.
By combining their console and handheld market, they've actually eaten into their own sales and drastically limited their 3rd party revenue.
All this while PlayStation is growing again after PS3, selling nearly 30 million more units. The only PlayStation to outsell the PS4 was the PS2, and the PS5 will probably be somewhere in between, but yes continue to suggest how the Nintendo Handheld Switch is eating into or competing with the PS4/PS5...
The reality is that sony didn't increase their units from PS3 to PS4 at the cost of Nintendo's market share, they did it by having the Xbox One sell 30 million units FEWER units than the Xbox 360.
And THAT is why Microsoft is nervous because they are in direct competition with Sony AND Sony's first party is getting better, they're getting more exclusives, and Microsoft really struggled with Xbox One and really haven't put out a better showing here either, which is again why Sony isn't competing directly with GamePass either.