Between the LinkBuds Fit and Liberty 4 Pro, the LinkBuds Fit comes out ahead in spatial audio and weight per bud, while the Liberty 4 Pro wins on battery — with case and battery — buds. Overall, the LinkBuds Fit scores 53.8 and the Liberty 4 Pro scores 72.8 on our Mars Score.
Which should you buy?
The Liberty 4 Pro is the clear pick on raw spec strength, leading by 19.0 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 LinkBuds Fit if audio quality and feature breadth (ANC, codecs, multipoint) are the lead criteria for your purchase. The biggest gaps in its favor are 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, driver size.
Both ship with comparable active noise cancellation, water resistance, multipoint, so those specs don't separate the two — focus on the differences below.
Bottom line: the Liberty 4 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Sony - LinkBuds Fit wins
- ▲Has Spatial audio.
- ▲Weight per bud — 0.70 g less. 4.9 vs 5.6.
Why Anker - Liberty 4 Pro wins
- ▲Battery — with case — 90.48% more. 40 h vs 21 h.
- ▲Battery — buds — 81.82% more. 10 h vs 5.5 h.
- ▲Driver size — 25.00% more. 10.5 mm vs 8.4 mm.
Spec comparison
Design
| Spec | Sony - LinkBuds Fit | Anker - Liberty 4 Pro |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 4.9 glead | 5.6 g |
| Water resistanceⓘ | IPX4 | IPX4 |
Audio
| Spec | Sony - LinkBuds Fit | Anker - Liberty 4 Pro |
|---|---|---|
| Driver sizeⓘ | 8.4 mm | 10.5 mmlead |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | Sony - LinkBuds Fit | Anker - Liberty 4 Pro |
|---|---|---|
| Battery — buds | 5.5 h | 10 hlead |
| Battery — with case | 21 h | 40 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Sony - LinkBuds Fit | Anker - Liberty 4 Pro |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.4lead |
| Codecs | LDAC,AAC,SBC | LDAC,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, LinkBuds Fit or Liberty 4 Pro?+
Liberty 4 Pro lasts 10h per charge vs 5.5h.
Do LinkBuds Fit or Liberty 4 Pro support multipoint?+
Both support multipoint pairing.
Which has ANC, LinkBuds Fit or Liberty 4 Pro?+
Both have active noise cancellation.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.