Sony - LinkBuds Open vs Anker - Liberty 4 Pro

The Liberty 4 Pro edges ahead on the Mars Score (69.5 vs 72.8), but the 3.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the LinkBuds Open if audio quality and feature breadth (ANC, codecs, multipoint) are the lead criteria for your purchase. The biggest gaps in its favor are driver size, spatial audio, weight per bud.

Pick the Liberty 4 Pro 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, active noise cancellation.

Both ship with comparable water resistance, multipoint, 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.