Tineco Floor ONE Stretch S6 Cordless Wet Dry Vacuum Cleaner, 180°Lay-Flat Smart Vacuum Mop, 40 Minutes Long Runtime 158℉ Flashdry Self-Cleaning, Dual-Sided Edge Cleaning Lightweight Floor Cleaner

Why it's worth it

The Stretch S6 lays flat to about five inches, weighs under 10 pounds, and uses the same iLoop dirt sensor to adjust suction and water on the fly. It gives up runtime and heat to hit a lower price than the S9.

This is the one we'd pick for an apartment or a smaller home. It's the narrowest machine in the lineup at under nine inches wide, and the clean water tank sits above the brush head instead of on the handle, which shifts the weight down where you don't feel it. Owners who've used spin mops and Bona kits describe this as the first thing that made floor cleaning feel quick rather than dreaded.

The iLoop sensor does the thinking you'd rather not do. It reads how dirty a patch is and dials suction, water flow, and roller speed up or down in real time, the same technology CNET highlights on the S5. You don't switch modes. You push, and the machine handles the kitchen-under-the-highchair zone differently from the hallway.

From our review of 7 tineco floor cleaners

What we like

• +This is the one we'd pick for an apartment or a smaller home
• +The iLoop sensor does the thinking you'd rather not do
• +The Flashdry system runs at 158°F rather than the S9's 185°F, cleaning the tubing and roller and then drying it sealed
• +Runtime lands at up to 40 minutes, roughly half the S9's rating

What to know

• –The shorter runtime is the real trade-off
• –Water and dirty-water tanks are smaller than the S9's to keep the machine slim, so expect more trips to the sink on a big job