Anker - Liberty 4 Pro vs Anker - Liberty 5

The Liberty 5 edges ahead on the Mars Score (72.8 vs 76.1), but the 3.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Liberty 4 Pro if you care most about driver size. The biggest gaps in its favor are driver size.

Pick the Liberty 5 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 — buds, battery — with case, weight per bud, among others.

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