In my ever-present attempt to describe the tablet market-frenzy, and understand what makes “the best” tablet, I’ve compiled some numbers. I’ve had these around for awhile, but with hearing the recommendation of 30 pixels minimum for buttons (and having a horrendous time on the smallest of buttons on all sizes of honeycomb tablets) I figured I should figure out just how small one is supposed to touch:
|mm=30px button||DPI||px x||px y||screen diag||screen x||screen y||screen Area||screen ratio|
|mac air 13||5.83||130.6||1440||900||13||11.02||6.89||76.0||1.6|
|galaxy tab 7||4.49||169.5||1024||600||7||6.04||3.54||21.4||1.7|
Apparently, the standard 4″ Android phone holds the smaller of sizes at 3.3mm. That’s not impossible, but considering my index finger is 4-5x the area, the 27″ iMac dot-pitch is closer to finger-sized. But comparing the 7″ to 10″ tablets, the difference is less than a single mm (.6mm). Oddly enough, that’s the same size differential between the iPad and the 10″ android tablet (making the 7″ tablet 1.28mm “harder to touch”). Winner? iPad. (again.) *sigh*.