Audio-Technica - ATH-M50xBT2 vs Sennheiser - Momentum 4 Wireless

These two are nearly even on the Mars Score (74.2 vs 73.9). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.

Pick the ATH-M50xBT2 if you care most about driver size. The biggest gaps in its favor are driver size.

Pick the Momentum 4 Wireless 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 life, weight, active noise cancellation.

Both ship with comparable spatial audio, multipoint, ldac, 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.