Apple - Studio Pro vs Sennheiser - HD 800 S

The HD 800 S edges ahead on the Mars Score (69.2 vs 73.6), but the 4.4-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Studio Pro if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight, active noise cancellation, spatial audio, among others.

Pick the HD 800 S if you care most about driver size. Its strongest claims are driver size.

Both ship with comparable ldac, water resistance, 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.