Bose - QuietComfort Earbuds (II) vs Sennheiser - Momentum True Wireless 4

The QuietComfort Earbuds (II) edges ahead on the Mars Score (58.4 vs 54.1), but the 4.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the QuietComfort Earbuds (II) if you care most about driver size. The biggest gaps in its favor are driver size.

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 — with case, battery — buds, spatial audio, among others.

Both ship with comparable active noise cancellation, weight per bud, 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.