Bose - QuietComfort SC vs Bose - QuietComfort Ultra 2

These two are nearly even on the Mars Score (62.9 vs 64). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

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

Pick the QuietComfort Ultra 2 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, spatial audio.

Both ship with comparable driver size, active noise cancellation, multipoint, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.