PS Vita has sold 11,543 and Nintendo 3DS has sold 78,279 currently in January 20 15 here at VGChartz. VGChartz is telling us that PS Vita is doing 15% of 3DS in Janaury 2015. But the NPD numbers are telling us that the Vita has done 39% of the Nintendo 3DS.  This would mean that PS Vita has sold 30,528 currently in January (without the last week of January). PS Vita is undertracked by 18,980 units in North America. This means it is undertracked by 62% in North America.

Notice: 
The last week of January 2015 hasn't been updated yet by VGChartz. 

My thought:
I think if the Vita sales are undertracked in North America, they will be also undertracked in Europe in January 2015!
Overall I can see it being undertracked by 30,000 units Global.
 

Wow ur really stretching now, we don't even know how much 3DS sold in January, meaning that 39% figure is useless.

If we go with the 3DS VGChartz sales, Vita is definitely undertracked here! 

The Vita is actually the best selling console of all time. Massively undertracked.

It's probably undertracked, but not that much because 3DS is probably very low in January because of the New 3DS.

And if we go with hard numbers from VGChartz, and then percentages based on NPD, we'd be making a stupid argument.

Well we need to know what the NPD sales are for the 3DS before you can be sure of that.

Why can't the 3DS also be overtracked in this scenario, making the Vita sales less than 30,000?

This is a everyday thread XD

This wouldn´t happen if sony gave us some data, but they seems too embarrased for their console performance, they shouldn´t if you ask me, seems like a silent murder.

All I can say is that it'd be awesome if the Vita was actually revived...

Don't know exactly how much support Sony has dropped.