Industry analyst Michael Pachter released new sales estimates for the month of April. According to his numbers, the Wii U was outsold by the original Wii by some 20,000 units.

This isn't the first time we've heard about the Wii U's struggling sales figures. Nintendo has been active early in the year promoting an upcoming slate of top-tier games, though many of them won't see release until the later half of 2013.

According to CVG, Pachter estimated the Wii U sales for last month to be around 55,000. Even with the Wii sales down 16 percent year-over-year, the elder console still reportedly managed to move 75,000 units. Both Nintendo consoles were greatly outsold by the 3DS (185,000 units), but the handheld market has been Nintendo's to lose for years.

Full sales numbers won't be made available by the NPD until later in the week, but it's unlikely its totals will differ much from Pachter's. The console market has been in decline for the past two years, but 2013 has been dreadful for all companies alike. That's expected to change as the PlayStation 4 and next Xbox arrive on the scene, but it will still take some time for the market to match the peak sales of this current generation.