Both cordless stick and robot vacuums were tested on how well they maneuver around furniture, into corners, and up against baseboards.User-Friendly FeaturesMany vacuums were assessed based on user-friendly features like self-cleaning functions. For vacuums that did not have this feature, we gauged the difficulty level of cleaning the vacuum. We also determine if vacuum instructions, directions, and visual and audio alerts are easy to understand.What to Look for in the Best Wet-Dry VacuumsIf youre looking for a wet-dry vacuum, its important to understand what it can and cannot dodepending on the model you select. Here are key factors to keep in mind:VersatilityAs a general rule, most wet dry cordless stick vacuums are most effective when vacuuming and mopping hard floorsunlike the best regular cordless stick vacuums, which can remove dry debris from both hard floors and carpet. Some of the few exceptions are the Dyson V15s Detect Submarine, which has a swappable wet roller head that includes a clean water tank and a dirty water tank. The Tineco Floor ONE Switch S7 has a swappable battery, but it is made up of two separate vacuums (one for wet use and one for dry use). The Bissell CrossWave does well on both hard floors and rugs, but it is not designed to clean carpet.The robot vacuums on our list are versatile enough to vacuum carpets and also vacuum and mop hard floors. We only included models that are lightweight enough to lift, as no one wants a wet mop dragged across carpeted areas.Cleaning AbilityThe primary benefit of wet-dry vacuums is convenience. These appliances offer a high suction power that you wont get from pushing a manual mop. Plus, they boast dual-cleaning power to pick up dirt and remove messes and stains.Space and WeightWeve included the weight for the vacuums featured in this list, and most of the cordless stick varieties are lightweight and self-propelling for easy maneuvering. Plus, stick vacuums shouldnt take up much storage space. Robot vacuums and their accompanying docking stations tend to be heavier, so you likely wont want to keep moving them around.Battery LifeAll of the vacuums on our list are battery-operated. Depending on the size of your home, you may want to choose a model with a long-lasting battery so you wont have to keep stopping to charge it. With robot vacuums, the process is much easier, since the robot will automatically go back to the charging dock, recharge itself, and then pick up where it left off cleaning. Battery life is a spec thats included for each vacuum in this guide.Self-Cleaning FeatureSelf-cleaning isnt always completely self-cleaning. Youll still need to remove the dirty water and empty it. Depending on the model, you will likely also remove the brush rolls for a more thorough cleaning, or to rinse the soap off. And with robot vacuums, youll also need to empty the dust bin at some point.