Dyson - V15 Detect Absolute vs Roborock - H7 Cordless
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Dyson - V15 Detect Absolute | Roborock - H7 Cordless |
|---|---|---|
| Dustbin | 0.77 L | 0.5 L |
| Suction (AW) | 240 | 160 |
| Battery | 60 min | 90 min |
| Weight | 3.1 kg | 1.4 kg |
Between the V15 Detect Absolute and H7 Cordless, the V15 Detect Absolute comes out ahead in dustbin / suction (aw), while the H7 Cordless wins on battery / weight. Overall, the V15 Detect Absolute scores 85 and the H7 Cordless scores 79.5 on our Mars Score.
Which should you buy?
The V15 Detect Absolute edges ahead on the Mars Score (85 vs 79.5), but the 5.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the V15 Detect Absolute if you care most about dustbin / suction (aw). The biggest gaps in its favor are dustbin, suction (aw). The single most decisive one: Dustbin — 54.00% more. 0.77 L vs 0.5 L.
Pick the H7 Cordless if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are battery, weight. The single most decisive one: Battery — 50.00% more. 90 min vs 60 min.
Both ship with comparable cordless, so those specs do not separate the two — focus on the differences below.
Bottom line: the V15 Detect Absolute is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Dyson - V15 Detect Absolute or Roborock - H7 Cordless?
Dyson - V15 Detect Absolute leads the current Mars Score by 5.5 points.The more useful decision is the trade-off behind that result: compare suction (aw), battery, weight against the way you will actually use the product.
Choose Dyson - V15 Detect Absolute if…
Dyson - V15 Detect Absolute has the measurable edge on dustbin l, suction aw.
Choose Roborock - H7 Cordless if…
Roborock - H7 Cordless has the measurable edge on battery min, weight kg.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Dyson - V15 Detect Absolute wins
- ▲Dustbin — 54.00% more. 0.77 L vs 0.5 L.
- ▲Suction (AW) — 50.00% more. 240 vs 160.
Why Roborock - H7 Cordless wins
- ▲Battery — 50.00% more. 90 min vs 60 min.
- ▲Weight — 1.70 kg less. 1.4 vs 3.1.
Spec comparison
Performance
| Spec | Dyson - V15 Detect Absolute | Roborock - H7 Cordless |
|---|---|---|
| Suction (AW) | 240lead | 160 |
| Dustbin | 0.77 Llead | 0.5 L |
| Filter | HEPA | HEPA |
Design
| Spec | Dyson - V15 Detect Absolute | Roborock - H7 Cordless |
|---|---|---|
| Type | Cordless stick | Cordless stick |
| Cordless | true | true |
| Weight | 3.1 kg | 1.4 kglead |
| Battery | 60 min | 90 minlead |