Bose - QuietComfort Ultra 2 vs Sennheiser - Momentum 4 Wireless

The Momentum 4 Wireless is the clear pick on raw spec strength, leading by 9.9 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the QuietComfort Ultra 2 if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight, spatial audio.

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, driver size, ldac.

Both ship with comparable active noise cancellation, multipoint, water resistance, so those specs don't separate the two — focus on the differences below.

Bottom line: the Momentum 4 Wireless is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.