The Best Vacuum Cleaners: Robot and Cordless Tested
We vacuumed over 1,000 square feet of flooring with each model to find the cleaners worth your money. These two dominated.
Over six months, we tested 14 vacuum cleaners across carpet, hardwood, and tile — dragging in cat litter, coffee grounds, crushed crackers, and actual dirt from the garden. Here’s what actually works.
Best Cordless Vacuum: Dyson V15 Detect
The Dyson V15 Detect is the best cordless vacuum we’ve ever tested, and it’s not close. The 240 AW suction outperforms most plug-in vacuums we tested. The green laser mounted in the cleaning head reveals fine dust on hard floors that looks completely clean to the eye — once you see it, you can’t unsee it.
The built-in piezo sensor counts and categorizes particles by size as you vacuum, displaying the data on the LCD screen in real time. It’s genuinely useful: you can see when a section of carpet is actually clean versus when there’s still fine debris the laser isn’t showing.
The catch: The V15 is heavy at 6.8 pounds. Overhead vacuuming or extended stair sessions are fatiguing. If weight is a concern, the V12 Detect Slim is worth considering, though it sacrifices battery life and suction.
Best Robot Vacuum: iRobot Roomba j7+
Robot vacuums have come a long way, but the j7+ is the first one we’ve tested that we’d confidently recommend to a home with pets or kids. The front-facing camera doesn’t just map your home — it identifies specific objects in its path, like socks, phone cables, and pet waste, and routes around them.
iRobot backs the pet waste avoidance with their “P.O.O.P.” guarantee: if the Roomba j7+ doesn’t avoid a pet accident, iRobot replaces the robot for free. We didn’t need to test that guarantee, but we appreciated the confidence.
The self-emptying base is the real quality-of-life upgrade. The Clean Base holds up to 60 days of debris — you set a schedule and mostly forget the vacuum exists. For homes under 2,000 square feet, the j7+ handles maintenance cleaning almost completely autonomously once the home map is finalized.