personally have not tried natuilus, my 2 cent on the 2 devices is that typically you wouldn't be even going over 30W on a single coil. Base on build quality i'd give it to mini cloupor, however basing on ergonomics subox feels slightly better BUT subox buttons are too small for my liking though both units are so small ergonomically it doesn't really matter. I'd give my final vote to mini cloupor (test for the fire protection aka newer version)