What resolution should I aim for if I want my game to be Pixel Perfect on all/most devices?

Up until now I was aiming for 1280x800 resolution. But now I read that only 4.4 percent of Android users have a device with this resolution.

What resolution should I aim for then if I want to make a pixel perfect 2D game that everyone/most of the gamers can enjoy?

I know about this Unity's blogpost but it's still not a very good explanation for me because the article is not concerned with multiple devices / different physical resolutions.

Should I even bother with pixel perfect graphics at this point?