Lefant M210Pro Robot Vacuum Cleaner, 4,000 Pa, Tangle-Free, Compact 28 cm Body

The Lefant M210Pro takes tenth place in our robot vacuum ranking, and it is the honest budget pick: at GBP 109.77 it is the cheapest here, its one-piece 28 cm body is smaller than most so it slips under and between furniture in a cramped flat, it has a HEPA filter and a 520 ml bin, and it runs for a listed 120 minutes. What it does not have is laser mapping: the listing never claims LiDAR, so it navigates in a more semi-random pattern rather than building a floor plan, and it does not mop. For a small home with hard floors that is a fair trade; for a larger layout the eufy L60 at number five gives you real mapping for about fifty pounds more.

Its specification table is the clearest single illustration of this article's argument. The title advertises 4,000 Pa, but the table records the suction as "2000 Millimetres": a different number from the title, in a unit that cannot measure suction at all, the same mislabelling that appears on the eufy and MONSGA listings. The table then lists the power source as "Corded Electric" and says batteries are not included, on a cordless robot that runs on a battery. None of it changes the hardware, but it is a reminder that these figures are catalogue entries rather than measurements. Everything here comes from the Amazon listing rather than our own testing.