If the device is really hard to find, how many of your end users are really going to be running it. Really you just have to try and buy a handful of devices, t

If the device is really hard to find, how many of your end users are really going to be running it. Really you just have to try and buy a handful of devices, test on those and then move on if your day. Particularly when it comes to Android, there's probably a few hundred devices released per year . If Billy Bob with a $35 Android phone can't run your app, there's a good chance he's not your target user in the first place.