Skip to content
vsMars
Spec drill · Suction (AW)

H7 Cordless vs Detect Pro Cordless IW1511

A side-by-side readout for suction (aw).

Roborock · H7 Cordless
160
Shark · Detect Pro Cordless IW1511
170
▲ Lead
VerdictDetect Pro Cordless IW1511 wins on suction (aw).
Context

Understanding suction (aw)

Suction (AW) is a numeric spec measured in raw units. On this metric, higher values are generally better, but returns diminish past category-typical thresholds — going from a low value to a mid value usually matters far more than going from a mid value to a high one. When comparing two products, focus on the percentage gap rather than the raw delta: a 200-unit lead means something very different at the low end of the range than at the high end. Pay attention to the unit, too — manufacturers sometimes quote peak or burst figures that are not sustained in real-world use. Cross-check the published number against independent measurements where possible, especially for performance and battery claims. Finally, remember that a single spec rarely tells the whole story; the Mars Score weighs suction (aw) together with the rest of the spec sheet so one outlier doesn't distort the verdict.

This matchupDetect Pro Cordless IW1511's 170 is roughly 6% higher than H7 Cordless's 160 (a 10 gap). Whether that gap is noticeable depends on workload — small percentage gaps rarely change day-to-day experience, while gaps of 20% or more usually do.

Drill more

Other specs on this comparison

See the full Vacuum Cleaners category for all products ranked by Mars Score.