Cordless Vacuums / Dyson
Dyson V15s Detect Submarine
A great dry vacuum with a mop head bolted on — and no self-clean cycle at all.
Overall score 7/10
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
Dyson V15s Detect Submarine review: what the specs say
A great dry vacuum with a mop head bolted on — and no self-clean cycle at all. At $879, Dyson's 2023 model sits at the premium end of the category — the cordless Vacuums we compare run from $129.99 to $1,199. It scores 7.0/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Suction Power at 9.5/10 — 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. The weakest is Sustained Runtime at 3.5/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: 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; and 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. Every specification on this page comes from Dyson's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
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Full Specifications
| Machine Type | Dry cordless stick vacuum with a swappable wet roller head — not a dedicated floor washer |
| Suction (as published) | 240 air watts. Dyson publishes air watts rather than Pa or motor watts |
| Runtime, Eco / Headline | 60 min |
| Runtime, Max Power | Not published by the manufacturer — Dyson quotes only 'up to 60 minutes' min |
| What the Runtime Claim Actually Means | 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 | Yes — tool-free click-in battery. A second battery is sold separately and is not in the box |
| Spare Battery | $99.99 for the genuine Dyson click-in pack |
| Dock / Wall Mount | Wall-mounted docking station included (drilling required), plus a drip tray for the wet head. No auto-empty, no self-clean dock |
| Filtration | Whole-machine sealed filtration; 99.99% at 0.3 micron claimed in Boost mode |
| Bin / Tank Capacity | 0.77 L dust bin; the Submarine head carries 0.3 L clean water and 0.36 L dirty water |
| Weight | 8.3 lbs |
| Filters, Consumables & Self-Clean | 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 |
| Connectivity | On-board LCD screen, No app, no Wi-Fi |
| Material | ABS and polycarbonate body with aluminium wand |
| Warranty | 24 months |
Compare Dyson V15s Detect Submarine With
Cheaper Alternative
Dyson V15 Detect Plus — $599.99