One brand (not featured on this list) recently issued recalls for its robotic pool cleaners due to battery failure while the unit was charging. FiltrationUnlike standard pool vacuums, robotic pool cleaners feature built-in filters and dirt reservoirs for capturing debris and particulate matter from the surfaces and water of your pool. Mapping and NavigationLike indoor robot vacuums, robotic pool cleaners use a variety of different technologies for navigating your pool. Additionally, some higher-end robotic pool cleaners allow you to program cleaning cycles. Timers and SchedulingMany robotic pool cleaners allow you to schedule their cleaning cycles, either through a built-in timer or through the manufacturer’s companion mobile app.