Roborock - Flexi Pro Wet/Dry vs Shark - Detect Pro Cordless IW1511
Between the Flexi Pro Wet/Dry and Detect Pro Cordless IW1511, the Flexi Pro Wet/Dry comes out ahead in dustbin, while the Detect Pro Cordless IW1511 wins on battery and weight. Overall, the Flexi Pro Wet/Dry scores 69.5 and the Detect Pro Cordless IW1511 scores 69.5 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes, with the decision sitting on which individual spec advantages weigh more for your use.
Pick the Flexi Pro Wet/Dry if you care most about dustbin. The biggest gaps in its favor are dustbin.
Pick the Detect Pro Cordless IW1511 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are battery, weight.
Both ship with comparable suction (aw), cordless, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Roborock - Flexi Pro Wet/Dry wins
- ▲Dustbin — 21.43% more. 0.85 L vs 0.7 L.
Why Shark - Detect Pro Cordless IW1511 wins
- ▲Battery — 50.00% more. 60 min vs 40 min.
- ▲Weight — 0.80 kg less. 3.7 vs 4.5.
Spec comparison
Performance
| Spec | Roborock - Flexi Pro Wet/Dry | Shark - Detect Pro Cordless IW1511 |
|---|---|---|
| Suction (AW) | 170 | 170 |
| Dustbin | 0.85 Llead | 0.7 L |
| Filter | HEPA | HEPA |
Design
| Spec | Roborock - Flexi Pro Wet/Dry | Shark - Detect Pro Cordless IW1511 |
|---|---|---|
| Type | Wet/dry cordlesslead | Cordless stick |
| Cordless | true | true |
| Weight | 4.5 kg | 3.7 kglead |
| Battery | 40 min | 60 minlead |
Frequently asked
Spec-level deep dives
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