Cordless Vacuums / Tineco FLOOR ONE S7 Stretch Ultra vs Dyson V15s Detect Submarine
Tineco FLOOR ONE S7 Stretch Ultra vs Dyson V15s Detect Submarine
Dyson V15s Detect Submarine
A great dry vacuum with a mop head bolted on — and no self-clean cycle at all.
Wins overall by 0.5 points
Quick Verdict
A 0.5-point gap makes the Dyson V15s Detect Submarine the straightforward choice here. A great dry vacuum with a mop head bolted on — and no self-clean cycle at all.
The Tineco FLOOR ONE S7 Stretch Ultra and Dyson V15s Detect Submarine are both closely matched cordless Vacuum models, and the Tineco FLOOR ONE S7 Stretch Ultra is $430 cheaper than the Dyson V15s Detect Submarine ($449 vs $879). On Filtration & Sealing, the Dyson V15s Detect Submarine leads (9.5 vs 5.0/10) — whether the whole machine is sealed or a HEPA element simply sits inside a leaky body, and what the claimed rating is actually measured at. On Battery System, the Dyson V15s Detect Submarine leads (8.5 vs 4.0/10) — removable or sealed, how many packs are included, what a spare costs and whether the pack is shared across a range. On Sustained Runtime, the Tineco FLOOR ONE S7 Stretch Ultra leads (7.0 vs 3.5/10) — how long the machine really runs on max power with the motorised floor head attached — not the eco-mode, bare-tool figure on the box. Overall, the Dyson V15s Detect Submarine scores 7.0/10 across our 8 scoring categories versus 6.5/10 for the Tineco FLOOR ONE S7 Stretch Ultra. Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Tineco FLOOR ONE S7 Stretch Ultra | Dyson V15s Detect Submarine |
|---|---|---|
| Price | $449.00 | $879.00 |
| Release Year | 2025 | 2023 |
| Machine Type | Cordless wet-dry hard-floor washer — it vacuums and washes sealed hard floors, and is not a carpet vacuum | Dry cordless stick vacuum with a swappable wet roller head — not a dedicated floor washer |
| Suction (as published) | 21 kPa sealed suction with a 230 W motor rating. Tineco publishes no air-watt figure, so this cannot be compared directly with the dry sticks here | 240 air watts. Dyson publishes air watts rather than Pa or motor watts |
| Runtime, Eco / Headline (min) | 50 | 60✓ |
| Runtime, Max Power (min) | Not published by the manufacturer — Tineco quotes 50 minutes and does not break it down by Auto, Max or Suction mode | Not published by the manufacturer — Dyson quotes only 'up to 60 minutes' |
| What the Runtime Claim Actually Means | Unlike a dry stick there is no non-powered-tool inflation here: the roller motor always runs on a washer, so the 50 minutes is the machine as sold. Tineco still publishes no Max-mode figure | The 60-minute figure is Eco with a non-powered tool. Dyson publishes no Boost figure and no wet-mode figure, and the Submarine head has its own motor that drains the pack faster than the dry heads |
| Removable Battery | No — the 7-cell 3,900 mAh pack is internal and not user-swappable | Yes — tool-free click-in battery. A second battery is sold separately and is not in the box |
| Spare Battery | Not applicable — the battery is not user-replaceable | $99.99 for the genuine Dyson click-in pack |
| Dock / Wall Mount | Charging and self-clean dock included; the machine runs its self-clean cycle sitting in the dock | Wall-mounted docking station included (drilling required), plus a drip tray for the wet head. No auto-empty, no self-clean dock |
| Filtration | A washable dry filter sits over the dirty-water tank. Tineco makes no HEPA claim and no sealed-system claim for this model | Whole-machine sealed filtration; 99.99% at 0.3 micron claimed in Boost mode |
| Bin / Tank Capacity | 1.0 L clean water tank and a 0.72 L dirty water tank | 0.77 L dust bin; the Submarine head carries 0.3 L clean water and 0.36 L dirty water |
| Weight (lbs) | Not published by the manufacturer for the Stretch Ultra (the older S7 Pro is 11.46 lb) | 8.3 |
| Filters, Consumables & Self-Clean | The FlashDry self-clean washes the roller with unheated tank water and then dries it with 185°F (85°C) air for 5 minutes — the 185°F in the marketing is the drying air, not the wash water. Hot-water washing needs the S7 Stretch Steam instead. The dirty-water tank and its hair filter are still emptied and rinsed by hand every time. Tineco specifies one capful of its own solution per tank and advises against third-party detergents | There is no self-clean cycle. The Submarine roller and both water tanks are rinsed by hand after every wet use. Replacement wet rollers are sold as Dyson spares |
| Warranty | 24 months | 24 months |
| Colors | White/Grey | Yellow/Nickel |
Category Scores
Suction Power
The Dyson V15s Detect Submarine leads clearly here, 9.5 against 6.5 — a 3.0-point margin on actual cleaning force at the head, judged on air watts where a maker publishes them and discounted where only Pa or motor watts are quoted. If that is what you are buying for, the Tineco FLOOR ONE S7 Stretch Ultra does not close the gap elsewhere.
Sustained Runtime
The Tineco FLOOR ONE S7 Stretch Ultra leads clearly here, 7.0 against 3.5 — a 3.5-point margin on how long the machine really runs on max power with the motorised floor head attached — not the eco-mode, bare-tool figure on the box. If that is what you are buying for, the Dyson V15s Detect Submarine does not close the gap elsewhere.
Filtration & Sealing
The Dyson V15s Detect Submarine leads clearly here, 9.5 against 5.0 — a 4.5-point margin on whether the whole machine is sealed or a HEPA element simply sits inside a leaky body, and what the claimed rating is actually measured at. If that is what you are buying for, the Tineco FLOOR ONE S7 Stretch Ultra does not close the gap elsewhere.
Handling & Ergonomics
The Tineco FLOOR ONE S7 Stretch Ultra leads clearly here, 8.0 against 5.5 — a 2.5-point margin on weight, balance, whether power is a push-button or a trigger you must hold, and how it stores. If that is what you are buying for, the Dyson V15s Detect Submarine does not close the gap elsewhere.
Maintenance & Emptying
The Tineco FLOOR ONE S7 Stretch Ultra leads clearly here, 7.5 against 5.0 — a 2.5-point margin on bin or tank emptying, whether your hand ends up near the dust, self-clean quality and the ongoing cost of filters, bags and detergent. If that is what you are buying for, the Dyson V15s Detect Submarine does not close the gap elsewhere.
Battery System
The Dyson V15s Detect Submarine leads clearly here, 8.5 against 4.0 — a 4.5-point margin on removable or sealed, how many packs are included, what a spare costs and whether the pack is shared across a range. If that is what you are buying for, the Tineco FLOOR ONE S7 Stretch Ultra does not close the gap elsewhere.
Versatility
The Dyson V15s Detect Submarine leads clearly here, 9.0 against 6.5 — a 2.5-point margin on handheld conversion, above-floor tools, carpet capability and wet-mopping ability. If that is what you are buying for, the Tineco FLOOR ONE S7 Stretch Ultra does not close the gap elsewhere.
Value
The Tineco FLOOR ONE S7 Stretch Ultra leads clearly here, 7.5 against 5.5 — a 2.0-point margin on what you actually get for the street price once consumables and missing accessories are counted. If that is what you are buying for, the Dyson V15s Detect Submarine does not close the gap elsewhere.
Best For
Choose the Tineco FLOOR ONE S7 Stretch Ultra if…
- • Sustained Runtime matters most to you — the Tineco FLOOR ONE S7 Stretch Ultra scores 7.0/10 here (how long the machine really runs on max power with the motorised floor head attached — not the eco-mode, bare-tool figure on the box).
- • Handling & Ergonomics matters most to you — the Tineco FLOOR ONE S7 Stretch Ultra scores 8.0/10 here (weight, balance, whether power is a push-button or a trigger you must hold, and how it stores).
- • You want to spend less — it's $430 cheaper.
Choose the Dyson V15s Detect Submarine if…
- • Filtration & Sealing matters most to you — the Dyson V15s Detect Submarine scores 9.5/10 here (whether the whole machine is sealed or a HEPA element simply sits inside a leaky body, and what the claimed rating is actually measured at).
- • Battery System matters most to you — the Dyson V15s Detect Submarine scores 8.5/10 here (removable or sealed, how many packs are included, what a spare costs and whether the pack is shared across a range).
- • Suction Power matters most to you — the Dyson V15s Detect Submarine scores 9.5/10 here (actual cleaning force at the head, judged on air watts where a maker publishes them and discounted where only Pa or motor watts are quoted).
- • Your main use case is allergies.
Pros & Cons
Tineco FLOOR ONE S7 Stretch Ultra
Pros
- +Lays flat to 5.1 inches and goes under furniture — the single reason to pick this over the older S7 Pro
- +Hot-air drying after every self-clean is what stops the roller going sour between uses
- +Dual-sided edge cleaning reaches within about a centimetre of a baseboard on both sides
- +The iLoop sensor throttles suction and water to the actual dirt, which is why 50 minutes is a realistic working figure
Cons
- −The self-clean washes with unheated tank water; only the drying air is 185°F. Hot-water washing costs $150 more on the Stretch Steam
- −The battery is sealed inside — when the pack dies, the machine dies
- −Tineco advises against third-party solution, so detergent is a permanent tie to Tineco
- −You still empty and rinse the dirty-water tank and pick the hair out of its filter by hand after every use
Dyson V15s Detect Submarine
Pros
- +One machine covers deep dry vacuuming and wet mopping, so you are not storing two appliances
- +The wet roller is genuinely effective on dried-on stains, and the two-tank design keeps dirty water off the floor
- +Identical 240 air watts and sealed filtration to the standard V15 Detect — the dry half is not compromised
- +Cheapest spare battery of any flagship here at $99.99
Cons
- −The Submarine head is a poor vacuum: it does not pick up dry debris or large spills well, so you must vacuum first and then mop
- −No self-clean cycle at all — the roller and both tanks get washed by hand every time, which is exactly what a Tineco or Roborock does for you
- −Trigger-hold operation, and 1.5 lb heavier than the standard V15 Detect
- −$1,049.99 list, and the Submarine head fits no other Dyson and cannot be bought as an add-on
Shop by Need
FAQs
Is the Tineco FLOOR ONE S7 Stretch Ultra or Dyson V15s Detect Submarine better overall?+
Based on our 8-category scoring, the Dyson V15s Detect Submarine comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Filtration & Sealing, the Tineco FLOOR ONE S7 Stretch Ultra or the Dyson V15s Detect Submarine?+
The Dyson V15s Detect Submarine scores higher on Filtration & Sealing (9.5/10 vs 5.0/10) — whether the whole machine is sealed or a HEPA element simply sits inside a leaky body, and what the claimed rating is actually measured at.
Which is better for Battery System, the Tineco FLOOR ONE S7 Stretch Ultra or the Dyson V15s Detect Submarine?+
The Dyson V15s Detect Submarine scores higher on Battery System (8.5/10 vs 4.0/10) — removable or sealed, how many packs are included, what a spare costs and whether the pack is shared across a range.
Which is better for Sustained Runtime, the Tineco FLOOR ONE S7 Stretch Ultra or the Dyson V15s Detect Submarine?+
The Tineco FLOOR ONE S7 Stretch Ultra scores higher on Sustained Runtime (7.0/10 vs 3.5/10) — how long the machine really runs on max power with the motorised floor head attached — not the eco-mode, bare-tool figure on the box.
Which is better for Suction Power, the Tineco FLOOR ONE S7 Stretch Ultra or the Dyson V15s Detect Submarine?+
The Dyson V15s Detect Submarine scores higher on Suction Power (9.5/10 vs 6.5/10) — actual cleaning force at the head, judged on air watts where a maker publishes them and discounted where only Pa or motor watts are quoted.
Is the Tineco FLOOR ONE S7 Stretch Ultra worth the price difference over the Dyson V15s Detect Submarine?+
The Tineco FLOOR ONE S7 Stretch Ultra is the cheaper option at $449 versus $879. Whether the pricier model is "worth it" depends on how much you value its lead in Filtration & Sealing.
Which is better suited to my use case?+
The Tineco FLOOR ONE S7 Stretch Ultra is the better fit if you mainly care about hard-floors or wet-dry. The Dyson V15s Detect Submarine is the better fit for allergies.
What's the warranty on the Tineco FLOOR ONE S7 Stretch Ultra vs the Dyson V15s Detect Submarine?+
The Tineco FLOOR ONE S7 Stretch Ultra ships with a 24-month warranty; the Dyson V15s Detect Submarine ships with a 24-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
Bissell CrossWave OmniForce Edge (3930F) — $329.99
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.