S mode does allow you to turn it off, so it's more like a hobbled version of home.
The computer is as bad as one I saw several years ago with 64g emmc and "Quad core processor." not a quad core, it was literally the name that showed in system. It did have 4 cores: at 400Mhz, boosting to 1.1Ghz. Buyer changed their mind and we couldn't give it away.