I've got my pair of #Elegoo #Neptune2 each with an old Samsung #Note4 running #OctoPrint4a, and I can cheerfully say it's maybe the best thing you can do with an old android phone. I even found a fancy camera mount clip on #thingiverse I'll #fabricobble something as the camera case is designed for an RPi camera. If I get the motivation to remix a proper note 4 holder for it you will be the first to know.