Sony - LinkBuds Fit vs Bose - QuietComfort Ultra Earbuds 2

These two are nearly even on the Mars Score (69.4 vs 70.9). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

Pick the LinkBuds Fit if you care most about weight per bud. The biggest gaps in its favor are weight per bud. The single most decisive one: Weight per bud — 1.30 g less. 4.9 vs 6.2.

Pick the QuietComfort Ultra Earbuds 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 — with case, driver size, battery — buds. The single most decisive one: Battery — with case — 14.29% more. 24 h vs 21 h.

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