Miele - Complete C3 Cat & Dog vs Shark - Detect Pro Cordless IW1511
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Miele - Complete C3 Cat & Dog | Shark - Detect Pro Cordless IW1511 |
|---|---|---|
| Dustbin | 4.5 L | 0.7 L |
| Suction (AW) | 240 | 170 |
| Weight | 9.3 kg | 3.7 kg |
| Cordless | false | true |
| Battery | 0 min | 60 min |
Between the Complete C3 Cat & Dog and Detect Pro Cordless IW1511, the Complete C3 Cat & Dog comes out ahead in dustbin / suction (aw), while the Detect Pro Cordless IW1511 wins on weight / cordless. Overall, the Complete C3 Cat & Dog scores 67.7 and the Detect Pro Cordless IW1511 scores 74.4 on our Mars Score.
Which should you buy?
The Detect Pro Cordless IW1511 edges ahead on the Mars Score (67.7 vs 74.4), but the 6.7-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Complete C3 Cat & Dog if you care most about dustbin / suction (aw). The biggest gaps in its favor are dustbin, suction (aw). The single most decisive one: Dustbin — 542.86% more. 4.5 L vs 0.7 L.
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 weight, cordless, battery. The single most decisive one: Weight — 5.60 kg less. 3.7 vs 9.3.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the Detect Pro Cordless IW1511 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: Miele - Complete C3 Cat & Dog or Shark - Detect Pro Cordless IW1511?
Shark - Detect Pro Cordless IW1511 leads the current Mars Score by 6.7 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 Miele - Complete C3 Cat & Dog if…
Miele - Complete C3 Cat & Dog has the measurable edge on dustbin l, suction aw.
Choose Shark - Detect Pro Cordless IW1511 if…
Shark - Detect Pro Cordless IW1511 has the measurable edge on weight kg, is cordless, battery min.
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 Miele - Complete C3 Cat & Dog wins
- ▲Dustbin — 542.86% more. 4.5 L vs 0.7 L.
- ▲Suction (AW) — 41.18% more. 240 vs 170.
Why Shark - Detect Pro Cordless IW1511 wins
- ▲Weight — 5.60 kg less. 3.7 vs 9.3.
- ▲Cordless: true (vs false).
- ▲Battery: 60 min vs 0 min.
Spec comparison
Performance
| Spec | Miele - Complete C3 Cat & Dog | Shark - Detect Pro Cordless IW1511 |
|---|---|---|
| Suction (AW) | 240lead | 170 |
| Dustbin | 4.5 Llead | 0.7 L |
| Filter | HEPA H13 | HEPA |
Design
| Spec | Miele - Complete C3 Cat & Dog | Shark - Detect Pro Cordless IW1511 |
|---|---|---|
| Type | canisterlead | Cordless stick |
| Cordless | false | truelead |
| Weight | 9.3 kg | 3.7 kglead |
| Battery | 0 min | 60 minlead |