Roborock F25 ACE Pro Foam

At 25,000 Pa the ACE Pro states the highest suction figure of any machine in this catalog - above the F25 Ultra Steam's 22,000 Pa and well above the 18 kPa the Dreame H14 Pro headlines as the strongest cordless cleaner in the older lineup.

And yet cleaning scores 8, not 9. That is deliberate, and it is worth explaining rather than hiding. The machines that earn a 9 here all have something the Pa number cannot substitute for: heat. The Tineco S5 Steam, the Bissell HydroSteam and the F25 Ultra Steam all steam-clean; the Dreame H14 Pro pairs its suction with a hot wash cycle. Suction lifts what is loose. Heat dissolves what is stuck. On a dried-on syrup spill, more Pascals pull harder at something that has not let go yet.

So read the 25,000 Pa as what it is: excellent at picking up liquid, crumbs and pet hair in one pass, and not a replacement for steam on baked-on grime. That gap is exactly the one point between an 8 and a 9.

Self-care is where this machine quietly beats most of the field. It washes its own roller at 203F - the hottest self-clean temperature stated by anything here, above the 194F of the Dreame H12 Pro FlexReach and the F25 Ultra Steam, and far above the 140F of the Dreame H14 Pro.

That matters more than it sounds. A wet-dry mop lives or dies on whether its roller stays clean, because a damp brush holding food residue is what turns into the sour smell that makes people stop using these machines by month three. Hotter water breaks down grease and residue better, full stop.

It still scores 8 rather than 9 for the same reason the F25 Ultra Steam does: the listing states a hot wash without a hot-air drying stage. The 9-scoring machines - the Tineco S7 FlashDry, the i6 Stretch, the Dreame H14 Pro - finish by blowing heat through the roller so it goes back to the dock dry. Washing at 203F and then leaving the roller damp is better than washing cool and leaving it damp, but it is not the same as drying it.

The runtime score of 7 is the one holding this machine at 7.7 instead of higher, and the number behind it is worth reading carefully because the listing quotes three.

The 4,000 mAh battery is rated 60 minutes in ECO, 40 minutes in AUTO and 30 minutes in MAX. We score the AUTO figure at 40 minutes, because ECO is the low-power setting most people will not clean a real floor on and MAX is the one they will reach for on a sticky mess.

Forty minutes puts it exactly level with the premium cordless pack here - the Dreame H14, H14 Pro and the Tineco Stretch models all sit at 40 - and behind the 50-minute Dreame H12 Pro FlexReach and the 60-minute F25 Ultra Steam. For a kitchen, an entry and a couple of rooms that is comfortable. For a whole house of hard flooring in one pass it is not, and you should plan on a mid-session dock. If runtime is your binding constraint, this is not the machine in the Roborock line to buy.

It lists at $699.99 and has traded near $420, which is a wide enough spread that the price you see decides whether this is a good buy.

Near $420 it is straightforward: 25,000 Pa, foam mopping, the hottest self-clean here and lay-flat reach, at roughly what the Dreame H14 Pro costs. The Dreame scores higher overall at 8.3 on the strength of its hot-wash-plus-hot-dry self-care 9, so it is still the better all-rounder, but the foam system is a genuine reason to choose differently if your floors are wood.

At full $699.99 list it is hard to defend. That is $200 more than the H14 Pro and only $100 short of the F25 Ultra Steam, which scores a full point higher at 8.7, adds steam, and runs 20 minutes longer. Within Roborock's own line, the step up to the Ultra Steam is the better spend if you are near list price on both.

And if neither foam nor maximum suction is a specific requirement, the honest advice is the same as it is across this category: cheaper machines here vacuum and wash daily dust and spills perfectly well.