I have a very crappy 99$ android phone[1] with gingerbread, a Nexus S, a Nexus 4 and a Nexus 7. Everything is tested on all the devices to make sure it works. I think that with this devices I can catch pretty much all cases, from low end to high and tablets.
[1] http://www.huaweidevice.com/resource/mini/201008174756/ideos...