On sale for the lowest price yet is the Roborock S7+ robot vacuum available on it's own or with the auto-empty dock. The Afterpay code discounts it by 15%, plus an extra $250/$100 off is applied automatically at checkout to bring it down further.
Features include 2500pa strong suction, 5200mAh battery with up to 180 minutes of runtime, LiDAR navigation and multi-level floor mapping, obstacle avoidance, 470ml dustbin, auto empty dock with 3L bag that holds up to 120 days of dust, sonic vibration mopping with 300ml water tank, carpet detection so the mop will lift when carpet is detected, app for control, maps, no-go zones, voice control etc, washable HEPA E11 filter and it's suitable for hard surfaces, floors, carpets and rugs.
Would be good if under $800 then it will be much reasonable for me to consider changing the old xiaomi one.