I think this is the lowest I've seen for this excellent robot vacuum. From 3rd party seller but ships free. Get it while it lasts.
About this item:
1) Efficient and Intelligent: Clean fast, with no random bumping. Using a dual-gyro system together with motion tracking sensors, cleaning is carried out logically and efficiently in every room. Thirteen types of sensors combine to offer cliff sensing, collision avoidance, mid-clean charging, and minimize the likelihood of entrapment.
2) Large battery capacity: A large 5200mAh battery offers 2.5hours of non-stop cleaning. A generous dustbin means even big homes can be cleaned in one go.
3) Thorough cleaning: 2000Pa of intense suction pulls dirt easily off hard floors, and drags it from deep inside carpet fibers.
4) Vacuum and mop: Vacuum and mop simultaneously for sparklingly clean floors. The mop sucks in water evenly as it cleans, so it cleans without leaving puddles.
5) App control: use the Mi Home APP to start, stop, schedule, customize, charge, check accessory status, control movement direction and more. A 2.4GHz Wi-Fi network is required.