Between the V8 (2024) and H7 Cordless, the V8 (2024) comes out ahead in dustbin, while the H7 Cordless wins on battery and suction (aw). Overall, the V8 (2024) scores 55.5 and the H7 Cordless scores 67 on our Mars Score.
Which should you buy?
The H7 Cordless is the clear pick on raw spec strength, leading by 11.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the V8 (2024) if you care most about dustbin. The biggest gaps in its favor are dustbin.
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, suction (aw), weight.
Both ship with comparable cordless, so those specs don't separate the two — focus on the differences below.
Bottom line: the H7 Cordless is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Dyson - V8 (2024) wins
- ▲Dustbin — 8.00% more. 0.54 L vs 0.5 L.
Why Roborock - H7 Cordless wins
- ▲Battery — 125.00% more. 90 min vs 40 min.
- ▲Suction (AW) — 39.13% more. 160 vs 115.
- ▲Weight — 1.15 kg less. 1.4 vs 2.55.
Spec comparison
Performance
| Spec | Dyson - V8 (2024) | Roborock - H7 Cordless |
|---|---|---|
| Suction (AW) | 115 | 160lead |
| Dustbin | 0.54 Llead | 0.5 L |
| Filter | HEPA | HEPA |
Design
| Spec | Dyson - V8 (2024) | Roborock - H7 Cordless |
|---|---|---|
| Type | Cordless stick | Cordless stick |
| Cordless | true | true |
| Weight | 2.55 kg | 1.4 kglead |
| Battery | 40 min | 90 minlead |
Frequently asked
Spec-level deep dives
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