I compare based on 4 years of experience of the first generation vacuum cleaner: - dry cleaning is much worse (despite the fact that there are no carpets). - sensors are better than, rarely beats, but behaves extremely "shy", which increases the cleaning time by 40% / often makes a number of illogical actions when moving / may not recognize the room at start (apparently the firmware has problems - A rag with a tank, like a normal function (it’s hard to pour the rest of the water out of the tank) - application management has more functions (remembers the map / can be divided into rooms and sent somewhere specific) Overall disappointed with the purchase.