Roborock Q7 L5 vs Lefant M330 Pro

If you have carpet: buy the Roborock Q7 L5. It keeps a roller brush, so something is actually agitating the pile, and it is the only one of the two that publishes a suction figure at all - 8,000Pa. If your floors are hard, cluttered, or your furniture sits low: buy the Lefant M330 Pro. It has no roller brush, so hair cannot wrap around anything; its PSD sensor actually steers around cords and furniture in real time; and at 95 mm it fits under things the Roborock cannot reach. It is also the cheaper machine. Neither has a dock, so you are emptying a bin either way.

This is not a ladder. It is two different engineering answers at a similar price, and the comparison people usually get wrong is assuming the one with the published Pascal figure is simply the better machine. On a hard floor with a shedding pet, it is not.

#	Product	Best for	Score	Price
01	Roborock Q7 L58,000Pa and real LiDAR mapping with no dock to buy bags for. The highest published suction of any machine here that empties into its own bin.	Best suction without a dock	8.2out of 10	$199.99 - View on Amazon $249.9920% off #ad Price last verified October 17, 2026. How we are funded
02	Lefant M330 ProPSD sensors that see cords and small objects, now with dToF mapping behind them. It publishes no suction figure at all, which is the trade.	Best obstacle avoidance under $150	7.5out of 10	$149.99 - View on Amazon #ad Price last verified October 17, 2026. How we are funded

Both machines scored on the published rubric from How We Pick: suction 25%, navigation 25%, pet hair 20%, running cost 20%, setup 10%. Editorial judgments about published specifications, not test results.

Four things decide this particular pair. We are setting them out first because three of the four are not on the front of either box.

1. What happens to hair. Either the machine has no roller for hair to wrap around, or it has a roller designed against wrapping. Both of these qualify, by completely different routes, and the route matters on carpet.
2. Whether anything agitates carpet pile. Suction lifts what sits on top of a carpet. Only a turning brush digs into it. This is the single axis where a published Pascal figure starts to matter.
3. Whether it sees obstacles or merely maps walls. A laser map knows where your walls are. It does not know a charging cable is on the floor. These two machines differ sharply here, and not in the direction the price suggests.
4. How tall it is, and how big the bin is. Both are things you live with daily and neither appears in a headline. One of these machines is nearly an inch taller than the other, and one holds more than twice as much dust while mopping.

The mechanics behind the second and third criteria are set out in robot vacuum navigation, explained and what obstacle avoidance actually means at this price. What a Pascal figure does and does not tell you is on what Pa suction actually means.

The Q7 L5 keeps a conventional roller brush and specifies anti-tangle geometry on it, plus what Roborock calls a zero-tangle side brush. That second half is the part most anti-tangle claims in this price range quietly leave out, and the side brush is where long hair winds itself into a solid collar. So the Roborock's answer to hair is: keep the brush, engineer it so hair slides off.

The M330 Pro's answer is to remove the brush. Lefant states it has upgraded the anti-tangle suction port to eliminate hair wrap - debris goes straight into the airflow path through an open inlet, and there is simply no roller present for hair to wrap around. Maintenance drops to emptying the bin: no scissors, no weekly surgery on a brushroll.

On hard floors the brushless design is genuinely excellent and it is why the cheap Lefants punch above their price in pet households. On carpet it is a real weakness, because nothing is agitating the pile - the machine lifts what is sitting on top and leaves what is worked in. That is the whole trade, and the full version of it is on best for carpet and best for pet hair.

It publishes a suction figure, and it has a brush to use it with. 8,000Pa is a real number from a company that reports them consistently, and paired with a turning roller it means the machine can dig into carpet rather than skim it. If any meaningful part of your floor is carpet or a medium-pile rug, this is the machine on this page, and the rest of the comparison is secondary.

Its anti-tangle claim covers both brushes. Most do not. The side brush is where hair actually wraps worst, and Roborock names it specifically.

It mops and vacuums in a single pass with three water levels, rather than asking you to run the floor twice. Whether a budget robot mop earns its keep at all is argued on is a robot mop worth it.

Nothing can wrap around a part that is not there. For a long-haired cat or a shedding dog on hard floors, an anti-tangle suction port beats an anti-tangle brush, because the failure mode is removed rather than mitigated. This is the single most underrated specification in the budget tier.

It is 95 mm tall and the Roborock is 3.89 inches. That is roughly a sixth of an inch of difference on paper and the difference between fitting and not fitting under a specific sofa in practice. The Q7 L5's LiDAR turret sits on top of the body and there is no way around it. Published heights across the whole field are tabulated on best for low furniture.

A 450 ml visible dustbin, separate from the water tank. Roborock designs the Q7 L5's tank and dustbin as a single integrated part, so filling the tank costs you dust capacity on that run. On a machine with no dock, where you are the emptying mechanism, that is a daily difference rather than a spec-sheet one. Lefant also makes the bin visible so you can see when it needs emptying.

It detects carpet and does something sensible about it. In mopping mode it avoids carpet to keep it dry; in vacuum mode it boosts suction to maximum when it meets one. The Roborock's mop does not lift either, so a rug needs a no-go zone drawn around it manually.

Dual-band Wi-Fi and a stronger avoidance claim, both covered above. And it is the cheaper of the two.

Neither empties itself. Both ship with a charging dock and nothing more, so with a shedding pet you are emptying a bin every run or two. If that is the chore you actually want solved, neither machine on this page is the answer and you should be reading the cheapest self-emptying robot vacuums instead, or is a self-emptying robot vacuum worth it first.

Neither mop lifts. Both are a damp pad dragged behind the machine, so neither can do a mixed floor of hard surface and rug in one pass without a zone drawn around the rug. And neither has structured-light obstacle avoidance - the M330 Pro's PSD is the better of the two claims by some distance, but it is not the same sensor class.

Mixed floors with any real carpet: the Roborock Q7 L5. The roller brush and the published 8,000Pa are what carpet actually needs, and its anti-tangle geometry means the brush is not a liability in a pet household. You pay more, you get a taller machine with a smaller effective bin while mopping, and on hard floors you are paying for an advantage you will not use.

Hard floors, pets, clutter or low furniture: the Lefant M330 Pro. No roller to unwind, a sensor that claims to steer around the cable nest rather than annotate it afterwards, 95 mm of height, a bigger separate bin, dual-band Wi-Fi, and a lower price. The honest caveat is that Lefant publishes no suction figure for it, so its headline capability cannot be placed on the same scale as anything that does - and Lefant is a less established name for warranty and spare parts in three years than Roborock is.

If you are still deciding between the brands more broadly rather than these two models, that argument is on Lefant vs Roborock, and the cheapest machines that map at all are collected on the cheapest robot vacuums with LiDAR mapping.