The most important things I want to know are the device type, the OS version, if it has a hardware keyboard and maybe the screen resolution. but if you know other useful debug information please add them 🙂
I found this for the OS version:
string += "OS Version: " + System.getProperty("os.version");
How do I get the other properties?
edit: to get a complete overview of useful attributes, I combined them all together in my ErrorHandler activity (start to read at line 56): https://github.com/simon-heinen/SimpleUi/blob/master/SimpleUI/srcAndroid/simpleui/util/DeviceInformation.java#L56
Windowsize and keyboard presence were a good idea, i added some more infos for debug purpose: