An early Prime Day deal has started on this robot vacuum cleaner from Ecovacs and not a bad option if you're after one on a budget. I've had an N8 with the auto empty station for several years now and it's still going strong with 1-2 uses a week.
It has 2300pa suction power with 4 levels of suction, a mop attachment with 3 levels of cleaning, dToF laser sensors, supports multiple floor maps, 3200mAh battery with 110 minutes of run time, app control, voice control and supports 2.4/5GHz mixed WiFi networks. It's compatible with the Ecovacs auto empty station (not included).
I have the N8+ and not a fan as I find it moves dirt around instead of vacuuming it. The suction is quite poor and it leaves a trail of dog hair and dirt when going over bumps. I think the price reflects this compared to other robot vacuums I've purchased in the past.