According to sales data published by Famitsu, the console moved approximately 3.78 million units in Japan last year, making it the fastest-selling console in the country’s history.
The system is said to have reached close to one million units sold in its first week alone, marking Japan’s biggest-ever console launch.
The Switch 2’s success had a clear knock-on effect across the wider market.
Famitsu’s figures suggest Nintendo hardware dominated the charts, with the original Nintendo Switch selling 1.52 million units to place second overall.
By comparison, Sony’s PlayStation 5 sold 879,204 units, while Xbox Series X|S lagged far behind at just over 31,000 units.
PS5 sales were down roughly 60 per cent year-on-year in Japan, despite the introduction of a cheaper, region-specific model.
Software performance underlined Nintendo’s dominance, as Nintendo-published titles occupied nine of the top ten best-selling physical games for the 21st consecutive year - led by Mario Kart World on Switch 2 with 2.66 million copies sold.
Capcom’s Monster Hunter Wilds on PS5 was the only non-Nintendo game to break into the top five.
The hardware boom powered strong growth across Japan’s domestic games industry.
Total market value rose nearly 39 per cent year-on-year to ¥418.13 billion ($2.64 billion), with hardware revenue up almost 50 per cent.
Nintendo’s own financial results reflected that momentum, reporting a 110 per cent jump in sales to ¥1.1 trillion and a near-20 per cent increase in operating profit.