The catch
Miele Duoflex HX1
On carpet, RTINGS measured weak suction and just fair pickup of fine debris.
Side by side
A straightforward automatic floor-head setup points to Duoflex HX1. Dyson V12 gives you separate floor tools and a removable battery, which adds flexibility in the longer term.
Before you buy
V12 has just 0.05 L more than Duoflex. That works out to about 17% more, yet both are still compact cups for a fur-heavy home.
Where this comes from
0.35 - 0.3 = 0.05 L, and (0.35 / 0.3 - 1) × 100 = 16.7%.
The catch
On carpet, RTINGS measured weak suction and just fair pickup of fine debris.
The catch
With lots of shedding, the 0.35-liter bin fills fast.


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Duoflex HX1 is the pick for a straightforward automatic floor-head setup. Dyson V12 offers separate floor tools and a removable battery for flexibility over the long run.
The Miele approach suits simple floor changes
Which one fits
A single floor-detecting head is well suited to quick trips across mixed surfaces. With Dyson, you can fit a dedicated soft roller for hard floors, but only through a deliberate tool change.
A compatible charged spare lets you extend V12. If longer uninterrupted sessions are part of your plan, add the cost of that battery to the purchase.
A charged spare can click into V12. Duoflex has no equivalent quick-swap routine, so waiting for a charge stays part of a longer clean.
Nominally the gap is five minutes. Because Duoflex bases its maximum on a solo configuration, the figures cannot decide which one finishes more powered-head floor cleaning.
In practice
V12 has just 0.05 L more than Duoflex. That works out to about 17% more, yet both are still compact cups for a fur-heavy home.
0.35 - 0.3 = 0.05 L, and (0.35 / 0.3 - 1) × 100 = 16.7%.
A charged spare can click into V12. Duoflex has no equivalent quick-swap routine, so waiting for a charge stays part of a longer clean.
A click-in battery is documented for Dyson, but not user quick swapping for the Duoflex model. Spare batteries are not assumed to be included.
Nominally the gap is five minutes. Because Duoflex bases its maximum on a solo configuration, the figures cannot decide which one finishes more powered-head floor cleaning.
60 - 55 = 5 minutes separate the published maxima. The attachment loads are not equivalent.

Miele, 12556610
A sturdy Miele that stands on its own, picks up pet hair excellently in testing and detects the floor type automatically.

Dyson, 448884-01
A light Dyson with button controls, a soft roller, particle sensing and a battery you can swap out.
Spec by spec
| Spec | Miele Duoflex HX1 | Dyson V12 Detect Slim+ | In practice |
|---|---|---|---|
| Bin capacity | 0.3 L | 0.35 L | Compact bins are the design on both. |
| Floor tools | Automatic floor-detecting head | Fluffy Optic plus Motorbar | Separate heads specialize the job, though they mean swapping. |
| Runtime headline | 55 minutes solo configuration | Up to 60 minutes | Runtime for the solo unit is not powered-head floor runtime. |
| Battery access | No quick-swap battery routine | Click-in removable battery | Swapping it yourself is not the same as professional service. |
| Upholstery package | Confirm Nordic Blue kit | Mini motorized tool on audited Slim+ | Check the exact accessories and not just the product family. |
Trade-offs
Decision guide
Go with Duoflex HX1 if you want a straightforward automatic floor-head setup, or with Dyson V12 for separate floor tools and a removable battery that keep your options open longer.
A single floor-detecting head is well suited to quick trips across mixed surfaces. With Dyson, you can fit a dedicated soft roller for hard floors, but only through a deliberate tool change.
A compatible charged spare lets you extend V12. If longer uninterrupted sessions are part of your plan, add the cost of that battery to the purchase.
Accessories can differ between Duoflex variants. The Nordic Blue record used here should not pick up pet tools from another package merely because the vacuum body looks the same.
By the numbers
What we found across the cordless vacuums we compare, plus the checked facts behind each finding.
This guide keeps all 66 models in play. The pick rests on the facts and trade-offs on this page.
66 models fit, out of 66 checkedDyson V12 Detect Slim+ lists 60 min for listed maximum runtime, 9% more than the 55 min on Miele Duoflex HX1.
How we countedNo needs are preselected here. Open the matcher and add the ones that apply to your home, room or setup.
How we calculatedThe top runtime figure usually comes from a low-power mode or an unpowered tool. Use it to gauge scale. Other attachments and modes give different runtimes. For context, 41 of 66 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Miele Duoflex HX1 | None of these needs is a documented match |
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| Dyson V12 Detect Slim+ | None of these needs is a documented match |
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Ready to buy
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Run one head over changing floors
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