Xiaomi G30 Max vs Dyson V15 Detect: Does Xiaomi’s Cheaper Vacuum Actually Compete?

Let’s start with the number every vacuum shopper checks first. The G30 Max claims up to 280 air watts of suction, working out to around 25,000 Pa. The V15 Detect sits at 230 to 240 air watts, depending on which version you buy. On paper, that puts Xiaomi ahead by a solid margin.

But air watts alone don’t tell you how a vacuum performs on your actual carpet. Dyson pairs its motor with a Digital Motorbar head that adjusts to floor type as you clean, and its cyclone system spins fast enough to generate 100,000g of centrifugal force, which keeps suction from dropping off as the bin fills. Xiaomi counters with its own 14-cone cyclone setup and three modes, Eco, Auto and Turbo, so you can trade power for runtime depending on the room.

This is where the price difference starts to make more sense. The G30 Max runs for up to 90 minutes in Eco mode, dropping to around 70 minutes with the motorized brush bar attached. The V15 Detect gives you up to 60 minutes on a single charge, though Dyson sells swappable batteries to extend a cleaning session.

Xiaomi’s advantage comes from a larger 4,000mAh battery built specifically to outlast the older G11 by 50%. Dyson’s seven-cell battery is efficient and well-tested, but it simply holds less charge. For anyone cleaning a large home or several floors in one go, that extra 30 minutes from Xiaomi is hard to ignore.

Dyson has built its reputation around the features it offers. The V15 Detect uses a piezo sensor that counts particles as you clean, showing the results on an LCD screen so you can see exactly what you’re picking up. There’s also a green laser on the Fluffy head that lights up dust on hard floors that you’d otherwise miss completely. 

Xiaomi didn’t ignore this playbook. The G30 Max uses its own dirt-detection system: in Auto mode, a colored line on the digital display shows how much dust the vacuum is collecting in real time, and suction adjusts automatically based on how dirty the surface is. There’s no laser, but a built-in LED light near the brush head helps you spot debris under furniture or in dim corners. On filtration, Xiaomi’s five-stage system claims to trap 99.98% of particles as small as 0.3 microns, essentially matching the HEPA-level performance Dyson advertises on the V15 Detect Extra.

Both vacuums convert from a stick to a handheld unit with one click, and both come loaded with extras. The G30 Max ships with seven attachments, including an anti-tangle brush bar, a sofa brush and a dedicated pet brush, all stored on a wall-mounted stand that keeps them within reach. Dyson also includes similar tools with the V15 Detect Plus, such as a hair screw tool and a crevice light pipe, though the vacuum itself doesn’t include on-board storage for every attachment, something reviewers have pointed out as a minor gap.

Weight matters too if you’re cleaning stairs or carrying the vacuum room to room. The G30 Max comes in at about 4.5kg, close to the V15 Detect’s roughly 3.08kg for the main unit, though exact figures shift depending on which attachment is on the end.

Here’s the part that matters the most. The G30 Max launched at around $324 in the US and €400 in Europe. The V15 Detect, meanwhile, typically retails between $650 and $800 depending on the bundle, and even discounted units rarely drop below $500 or $600.

That’s not a small gap. You’re looking at Xiaomi delivering comparable suction, longer battery life, similar filtration claims, and a decent attachment set for less than half of what Dyson charges for its flagship stick vacuum.

If you’ve used Dyson vacuums before and trust the brand’s build quality, the V15 Detect still earns its reputation. The laser dust reveal and particle counter are genuinely satisfying to use, and Dyson’s after-sales support is well established in most markets.

But if you’re shopping on value, the G30 Max is hard to argue against. It matches or beats the V15 on the numbers that matter most for everyday cleaning, runs longer between charges, and costs a fraction of the price.

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