Dyson V15 Detect Review: The Laser Gimmick That Works

A precisely angled green laser mounted on the Fluffy Optic head projects a thin line just above the floor, and it's the single biggest reason to buy this vacuum over a cheaper model. Dust that's completely invisible under normal lighting shows up instantly, and the piezo sensor backs it up by counting and sizing particles 15,000 times a second on the LCD.

The Hyperdymium digital motor spins up to 125,000 rpm and delivers 240 air watts, the most of any cordless vacuum we've tested. The Digital Motorbar head detects floor type and adjusts power automatically, and the difference is obvious on thick carpet and deep-cleaning jobs — the gap narrows on daily hard-floor upkeep.

The fully-sealed filtration system captures and seals in 99.99% of particles as small as 0.1 microns, which matters more than most buyers realize until they own pets or deal with seasonal allergies. Emptying the bin is genuinely low-mess thanks to the hygienic point-and-shoot ejector.

Dyson's 60-minute claim only holds in Eco mode on hard floors — switch to Boost for the deepest clean and you're down to 18-22 minutes in our testing. The removable seven-cell battery is the saving grace: keep a spare charged and swap it mid-clean without missing a beat.

Switching between the Fluffy Optic head for hard floors and the Digital Motorbar for carpet takes seconds, and the one-click handheld conversion means stairs, car interiors, and upholstery are covered without a second machine. The anti-tangle Hair Screw tool is the standout add-on for pet owners.

At $749.99, the V15 Detect sits well above most cordless rivals and even above some full-size upright bundles. It's earned a chunk of that premium with the laser and suction, but shoppers who don't need the absolute best will find close-enough alternatives for hundreds less.