Lefant M2L Plus vs Xiaomi H40 vs VONKO S6 Pro vs Redkey D8 vs Cecotec Y50 X-Treme: Honest talk on budget robot vacuums

Robot vacuums with auto-empty bases5 products

Quick verdict

The 'Keep It Running' Verdict

If you want reliability, the Xiaomi H40 is the most polished performer of the bunch. For those on a tight budget who don't mind a bit of simplicity, the Lefant M2L Plus is a solid choice, provided you don't need a heavy-duty mop.

Side by side

FeaturePhoto of Lefant M2L PlusLefant M2L PlusPhoto of Xiaomi H40Xiaomi H40Photo of VONKO S6 ProVONKO S6 ProPhoto of Redkey D8Redkey D8Photo of Cecotec Conga Y50Cecotec Conga Y50
Price€169.99€199.00€149.99€163.68€149.00
Suction PowerXiaomi claims the most realistic high-end power that actually translates to performance.6000 Pa10000 Pa (winner)8000 Pa25000 Pa5000 Pa
Base CapacityThe 4 liter capacity on the Xiaomi and Redkey means fewer trips to the bin.2,2 litros4 litros (winner)2,5 litros4 litros3 litros
Battery LifeVONKO takes the lead here, giving you the longest runtime per charge.130 minutes100 minutes180 minutes (winner)Not listedNot listed

Product by product

Lefant M2L PlusBest value

Pet owners avoiding hair tangles

A compact unit that skips the central brush to prevent hair clogs. It navigates well, but don't expect miracles from its mopping.

What We Liked 👍

  • No central brush tangles
  • Excellent LiDAR navigation
  • Compact design fits furniture

What Could Be Better 👎

  • Mediocre mopping function
  • Replacement bags required
  • Battery life inconsistencies

Xiaomi H40Our pick

Reliable daily cleaning

A balanced machine that actually does what it claims. It is sturdy, quiet enough, and the app is far less frustrating than the cheaper alternatives.

What We Liked 👍

  • Strong, honest suction power
  • Large 4L auto-empty base
  • User-friendly app and software

What Could Be Better 👎

  • Shorter battery life
  • Only for thin rugs

VONKO S6 Pro

Large homes

A strong runner with a long-lasting battery for big floor plans. It hits hard on suction, though the build feels a bit more budget than the big names.

What We Liked 👍

  • Impressive 180 minute runtime
  • Very high suction power
  • Multi-floor mapping capability

What Could Be Better 👎

  • Average build quality
  • Less intuitive software

Redkey D8

Large capacity seekers

Boasts huge numbers, but you should take the marketing specs with a grain of salt. It has a great base size, but the software experience can be a headache.

What We Liked 👍

  • Large 4L capacity
  • Decent navigation capability
  • Very quiet operation

What Could Be Better 👎

  • Questionable app subscription models
  • Inconsistent suction reporting
  • Software installation hurdles

Cecotec Conga Y50

Simple laser navigation

It does the job for basic floor maintenance, but reports of it failing to find its base are a real nuisance. Keep it simple if you pick this one.

What We Liked 👍

  • Accurate laser mapping
  • Effective brush design
  • Reasonable price point

What Could Be Better 👎

  • Docking reliability issues
  • Underwhelming mopping quality

When Numbers Don't Tell the Whole Story

If you stare at these spec sheets long enough, you might think you're buying a jet engine. Some claim 25000 Pa of suction, which is frankly absurd for a household robot. Always look past the marketing fluff. A robot that navigates intelligently and actually returns to its base is worth more than one that claims to suck up a bowling ball but gets stuck under the sofa.

When it comes to these units, the software and the base are the real workhorses. If the app is a nightmare or the vacuum can't find its way back to the station to empty itself, the whole 'auto-empty' promise falls apart. Xiaomi and Lefant seem to have the better handle on the software side of things, which makes a world of difference when you just want the floors clean without babysitting a machine.

Why You Should Care About the Brush

I've spent enough time pulling hair out of vacuum rollers to last a lifetime. If you have pets or long-haired family members, the Lefant M2L Plus is worth a look simply for its brush-less design. It is one less thing to maintain. However, if you have thick carpets, that brush-less design might struggle compared to the Xiaomi H40 or VONKO S6 Pro, which use more traditional roller systems to dig into the fibers.

Don't get dazzled by the mopping features either. These robots aren't going to deep-clean your kitchen floor; they are essentially dragging a damp rag around. If you are looking for a true scrub, you are going to be disappointed by all of them. Use them for maintenance, and keep a real mop for the deep clean.

The Final Word on Your Hard-Earned Money

If you want a machine that won't give you a headache every time you turn it on, go for the Xiaomi H40. It is a mature product that balances suction, capacity, and software reliability without trying to reinvent the wheel. It is the most 'set it and forget it' option here.

If you are on a budget and have hair everywhere, the Lefant M2L Plus is your best bet because it avoids the brush tangle trap. Avoid the temptation to chase the highest suction numbers on the sheet; buy the machine that is actually smart enough to navigate your living room without getting lost.

Prices on amazon.es as of October 26, 2026. Prices may change.

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  • Robot vacuums
  • Auto-empty base
  • Budget cleaning
  • Home maintenance