HP LaserJet MFP M235sdw Mono Printer, Print/Scan/Copy

Yes — unlike the print-only lasers higher up our ranking, this is a genuine all-in-one. It has a real scanner with an automatic document feeder, so it prints, scans and copies from the machine itself, not just through a phone app.

The listing's dimensions field reads "3.08 x 4.18 x 2.94 metres", which is obviously wrong — that would be larger than a room. Those are centimetres entered in the wrong unit, so the printer is roughly 30.8 x 41.8 x 29.4 cm and weighs 9.5 kg. It is genuinely compact for an all-in-one.

Yes. Wi-Fi is the headline feature and it reconnects automatically, though the specification's network field lists only Ethernet. Both work, and it also prints from a phone through the HP app.

The specification gives 27 pages a minute in A4, with the first page out in about seven seconds — quick for an all-in-one. It does automatic two-sided printing, which the listing calls the fastest duplex in its class.

The listing does not publish a cost per page. As our ranking notes, HP toner costs more per page than Brother's, so for heavy printing the Brother DCP-L2627DWE all-in-one is cheaper to feed; for moderate volumes the convenience of this top-rated machine usually wins.

No. It is a monochrome (black-and-white) laser. It scans and copies in mono. If you need colour output, see the HP LaserJet Pro MFP 3302fdw further down our ranking, but remember a colour laser has four toners and a higher cost per page.