Most of the androids listed in the encounter's section have 50HP. The save as L5. What part of the chart do I use for them in combat? They don't have HD just HP?
Attack as a level 5 creature? It would make sense considering their saves. Their HP's are calculated differently (being equivalent to full 5d10) to account for their non-living nature. At least that's the way I see it.
And if you want to create beefier androids, perhaps even a giant version just increase HP in sets of 10 and increase their attack and saves by one level per 10hp bump.