Robot vacuums with multifunctional docks that make cleaning virtually handsfree — like the Dreame L20 Ultra — are seeing some serious discounts this Prime Day. | Photo by Jennifer Pattison Tuohy / The Verge
Robot vacuums have come a long way since their bump-and-roll days, when they had to be rescued whenever they encountered a sock or a particularly scary-looking chair leg.
Today, high-end robot vacs have advanced sensors that help them nimbly navigate your home, charging docks that suck the dirt out of the bin so you don’t have to get your hands messy, and self-filling water tanks so they can mop more of your floor in one clean.
The problem with all these fancy features is that they can cost over $1,000 for the privi...
