Wii U didn't crack 2 million hardware sales in 2014, but Smash Bros., Amiibo, and Mario Kart show improvement.
The Wii U had its best hardware and software sales month ever, according to Nintendo, as hardware sales shot up 29% and software sales improved by 75% from 2013. In addition, around 2.5 million Amiibo have been sold so far, nearly double the total sales of Super Smash Bros. for Wii U.
Looking at Nintendo's publicly available sales data from the past two years, the Wii U appears to have sold around 1.67 million units in the Americas in 2014, compared to 2013's 1.3 million. From October to December, Nintendo appears to have sold about 760,000 units in the Americas.
Game-wise, Mario Kart 8 sold 1.7 million physical and digital units, and Pokémon Omega Ruby and Alpha Sapphire sold more than 2.6 million units. The pair of Smash Bros. games sold close to 4 million units combined, with 1.7 coming from the Wii U version and over 2 million coming from the 3DS version.
While 3DS hardware sales weren't mentioned, 3DS first-party software sales boasted its biggest month ever, mostly thanks to Smash Bros. and Pokémon. The top 15 best-selling handheld games were all released for 3DS in 2014.
Note: Nintendo's press release refers to U.S. sales while the other data is based on the Americas as a whole. However, the difference between sales in the U.S. and the Americas is, for the most part, neglible. We stress that these numbers are not 100% exact.