Model comparisons
Tineco S5 Steam, S6 Stretch Steam, S7 Steam and S7 Stretch Steam
Tineco's S5 Steam, S6 Stretch Steam, S7 Steam and S7 Stretch Steam are powered hard-floor washers, but their controls and working routines are not interchangeable. The S5 is corded and has a linked U.S. manual; the S6 product page adds lay-flat clearance and a larger listed clean-water tank, but its exact U.S. manual and mode table remain unconfirmed. The two S7 models are cordless and have model-specific manual evidence for selectable steam and liquid-recovery modes. Check your flooring maker's steam and moisture guidance before choosing any of them.
S5 Steam: corded wash-and-steam routine
The FLOOR ONE S5 Steam is the only corded model in this comparison. Its U.S. manual identifies SW100400US, specifies 120 V / 12 A / 1,440 W, and lists roughly 0.75 L clean- and dirty-water tanks. Tineco's U.S. page markets it as a two-in-one wash-and-steam floor washer, and its support FAQ says the machine can vacuum and wash without a preceding dry-vacuum pass. The control manual describes Auto and Steaming modes, not a separate SUCTION mode. If you need a separate setting for picking up liquid after steaming, the S5 does not document that control route.
Tineco's FAQ gives roughly 12–20 minutes per full clean-water tank, depending on water and steam flow. Treat that as a manufacturer operating range, not an independent runtime test or a guaranteed 20-minute session. The cord is listed as around 26 feet (8 m), so the trade is no battery charging against outlet placement and cord management. Its manual warns not to recline beyond 142°; this is not a lay-flat-under-furniture design.
S6 Stretch Steam: corded with reach, but an open control question
The FLOOR ONE S6 Stretch Steam is also corded, and its U.S. product page lists an 8.3 m cord, a 1 L clean-water tank, a 0.72 L dirty-water tank and a 180-degree lay-flat design with 5.1-inch body height. The clean reservoir is larger than the S5's 0.75 L, and the advertised lay-flat clearance changes the under-furniture use case. The official U.S. store record has one SKU, SW150100US, but its live rendered listing says unavailable/backordered while the product JSON reports available=true; that is a stock conflict, not proof the machine was discontinued.
The important limitation is documentation: the current U.S. manual index lists an S6 manual and a separate Stretch S6 manual, but no clearly exact S6 Stretch Steam manual. The exact-title U.K. manual is an EU configuration, so it does not establish U.S. operating instructions. Do not infer the S7's AUTO/MAX/STEAM/SUCTION cycle or S5's Auto/Steaming controls for the S6. The product pages support its steam-washer identity and physical specs, but a separate wet-recovery mode, Steam runtime and cleaning-solution compatibility remain unknown. The S6 is a fit only if its corded, lay-flat floor-washer role itself is enough; if a specific control is essential, use the S5 or an S7 whose U.S. manual documents that control.
S7 Steam: cordless with app-selected SUCTION
The standard FLOOR ONE S7 Steam is a different product from the S7 Stretch Steam. Its exact U.S. manual documents AUTO, STEAM and BOOST STEAM on the appliance, with SUCTION selected through the Tineco app when Wi-Fi is connected. Steam and SUCTION are separate modes; the manual does not promise simultaneous steam extraction. Tineco gives an approximate 20-minute STEAM/BOOST STEAM lab estimate, rather than the S5's full-tank range. This model fits a buyer who prioritizes cordless movement and wants two steam intensities, but app access is part of its separate liquid-pickup route.
The standard S7 Steam manual also warns against laying the appliance flat or leaning it because dirty water could reach the motor. If a low-clearance, 180-degree reach is important, do not infer it from the S7 name: the Stretch model is a separate configuration with its own instructions.
S7 Stretch Steam: cordless with physical mode selection
The S7 Stretch Steam's manual lists AUTO, MAX, STEAM and SUCTION as distinct selections on the appliance, so an app-free physical SUCTION control is documented for that model. It also has the 180-degree lay-flat design. Tineco advertises up to 30 minutes in STEAM mode and up to 80 minutes in any mode when laid flat; those are manufacturer claims with different operating bases, not interchangeable Steam-mode runtimes. Its exact U.S. store record identifies SKU SW14090EUS, while the rendered store page and product JSON have disagreed about availability. That disagreement does not make the S7 Stretch the same machine as the standard S7 Steam.
Choose by the unmet requirement
Choose the S5 Steam when corded operation and a documented Auto/Steaming wash routine matter more than under-furniture reach. Consider the S6 when you want a corded model with the listed larger clean tank and lay-flat design, but only if you do not need unverified mode details. Choose the S7 Steam when cordless movement and two Steam intensities matter, accepting app/Wi-Fi dependence for Suction. Choose the S7 Stretch Steam for its lay-flat design and physical cycle through four documented selections, while remembering that steam and suction are separate modes.
Surface and care requirements stay conservative across the three models with linked U.S. manuals: those instructions describe indoor non-carpeted floors, not upholstery, curtains, rugs or general household detail work. The S6 product listing also names non-carpeted floor use, but its exact manual remains an important open item. A manufacturer example such as tile or sealed wood is not blanket permission for a particular finish. These washers have recovered-water tanks and roller/filter parts to care for; a conventional boiler canister may be a better alternative if grout tools, glass attachments or above-floor reach are the real job.
Finally, check the full name and seller listing at checkout. Tineco's current S5 Steam product page remains available as a U.S. reference, but its old exact-name store route leads to the distinct S6 Stretch Steam page; no current exact S5 retailer SKU is established there. The standard S7 Steam's exact-name route also does not establish its own live store SKU. The S6 has an exact U.S. store SKU, though its listing says unavailable/backordered while its product record reports available=true. Compare the exact model identity, package and current status instead of relying on a shared family number.