Famitsu has revealed that Nintendo has currently shifted 4.5 million systems in Japan. As you will have noticed from the Media Create sales which are published every Wednesday, the Nintendo Switch has become the dominant console in Japan, usually outselling Sony’s PlayStation 4 each week. The exact number of consoles sold since Famitsu released its data is 4,524,037 systems. It shouldn’t be too long until the Nintendo Switch reaches the 5 million mark if sales continue to rise.
Japan: Nintendo Switch Has Now Sold Just Over 4.5 Million Units

How many all together tho
Unfortunately we don’t get weekly numbers like that in other countries. The most recent numbers I’ve seen were 17 million at the end of April.
17.79 million as of March 31, 2018
https://www.nintendo.co.jp/ir/en/finance/hard_soft/
that’s a pathetic number for a pathetic port machine
That’s more than the PS4 did it’s first year in Japan.
that’s a pathetic comment for a pathetic trolling machine :D
(could not help it xD)
@meh
trash comment from less than trash person
Technically, you should say it’s an impressive number for a pathetic port machine. It’s trending to surpass lifetime Gamecube and Xbox OG sales before we hit Christmas and projected to easily surpass N64 lifetime sales by the end of the holidays. All by year two. Sure, it’s got a long way to go before it plays with the big dogs (around 70 mil+ lifetime sales is where you need to be for that), but 60-80 mil by the end of a 4-5 year run is pretty reasonable unless we see some dramatic shifts in the sales charts.
You can say what you will about quality, but when you make up crap about numbers you just sound silly, Mr. Silly Bear.
@meh
What a piece of shit comment from a piece of shit troll!
“Sluggish sales”
Actually, it’s really impressive considering PS4 reached this same landmark after a little over 3 years go its launch (37 months, since it launched on February 2014). Switch made it in about 16 months! That’s really huge!
Source: https://www.dualshockers.com/ps4-sales-pass-4-5-million-units-japan-ps4-pro-sales-pass-200000-units/