Apple - AirPods 4 with ANC vs Sennheiser - Momentum True Wireless 4

The AirPods 4 with ANC edges ahead on the Mars Score (58.3 vs 54.1), but the 4.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the AirPods 4 with ANC if you care most about driver size and weight per bud. The biggest gaps in its favor are driver size, weight per bud.

Pick the Momentum True Wireless 4 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are battery — buds, battery — with case, multipoint.

Both ship with comparable active noise cancellation, water resistance, spatial audio, 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.