All of our robot vacuum cleaners are fully tested and we don't recommend any products that we haven't seen and used in the flesh. To compare robots, we put them through the same set of tests, including their ability to pick up dirt and, for those that mop, their floor cleaning prowess. We test each one using any smart assistant support that it has, and we see how well they can navigate our homes. For more information, read our guide to how we test robot vacuum cleaners.