I’m new to Unity development and mobile games in general, but I’m curious as to what screen size to shoot for when developing mobile games and how this is handled on different handsets.
Anyone have any suggestions?
Build it resolution agnostic. I can’t over emphasize how much easier your life will be if you put a bit more time into ensuring it works properly on all resolutions 
Does Unity have some sort of functionality where you can find the native screen resolution of the device it’s running on?
Yes it does.
Screen.currentResolution
or screen.width screen.height
JTBentley any suggestions on the settings to build it resolution agnostic? I’m working on getting a game to Android and IOS, but focusing on the android release first and would like it to play on the larger pads. How can I make it resolution dependent?