We chose carefully from several brands Okami, IcLebo, irobot. Looked at YouTube testing. This one turned out to be the best. But if you compare them with S5 max, they are the same in terms of functionality, but navigation is better in this, which means it doesn’t in cords, socks, etc. We understand the MI home application, it’s intuitive, but still you need to rustle your brains, which is also not bad))