Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Sony - LinkBuds Fit | Anker - Liberty 5 |
|---|---|---|
| Battery — with case | 21 h | 48 h |
| Battery — buds | 5.5 h | 12 h |
| Driver size | 8.4 mm | 10 mm |
| Spatial audio | true | false |
| Water resistance | IPX4 | IP55 |
| Weight per bud | 4.9 g | 4.5 g |
Between the LinkBuds Fit and Liberty 5, the LinkBuds Fit comes out ahead in spatial audio, while the Liberty 5 wins on battery — with case / battery — buds. Overall, the LinkBuds Fit scores 69.4 and the Liberty 5 scores 85.8 on our Mars Score.
Which should you buy?
The Liberty 5 is the clear pick on raw spec strength, leading by 16.4 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. The single most decisive one: Has Spatial audio.
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 — with case, battery — buds, driver size, among others. The single most decisive one: Battery — with case — 128.57% more. 48 h vs 21 h.
Both ship with comparable active noise cancellation, multipoint, so those specs do not separate the two — focus on the differences below.
Bottom line: the Liberty 5 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Sony - LinkBuds Fit or Anker - Liberty 5?
Anker - Liberty 5 leads the current Mars Score by 16.4 points.The more useful decision is the trade-off behind that result: compare driver size, battery — buds, weight per bud against the way you will actually use the product.
Choose Sony - LinkBuds Fit if…
Sony - LinkBuds Fit has the measurable edge on has spatial audio.
Choose Anker - Liberty 5 if…
Anker - Liberty 5 has the measurable edge on battery life case h, battery life buds h, driver size mm.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Sony - LinkBuds Fit wins
- ▲Has Spatial audio.
Why Anker - Liberty 5 wins
- ▲Battery — with case — 128.57% more. 48 h vs 21 h.
- ▲Battery — buds — 118.18% more. 12 h vs 5.5 h.
- ▲Driver size — 19.05% more. 10 mm vs 8.4 mm.
- ▲Water resistance: IP55 (vs IPX4).
- ▲Weight per bud — 0.40 g less. 4.5 vs 4.9.
Spec comparison
Design
| Spec | Sony - LinkBuds Fit | Anker - Liberty 5 |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 4.9 g | 4.5 glead |
| Water resistanceⓘ | IPX4 | IP55lead |
Audio
| Spec | Sony - LinkBuds Fit | Anker - Liberty 5 |
|---|---|---|
| Driver sizeⓘ | 8.4 mm | 10 mmlead |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | Sony - LinkBuds Fit | Anker - Liberty 5 |
|---|---|---|
| Battery — buds | 5.5 h | 12 hlead |
| Battery — with case | 21 h | 48 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Sony - LinkBuds Fit | Anker - Liberty 5 |
|---|---|---|
| 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 5?+
Liberty 5 lasts 12h per charge vs 5.5h.
Do LinkBuds Fit or Liberty 5 support multipoint?+
Both support multipoint pairing.
Which has ANC, LinkBuds Fit or Liberty 5?+
Both models have active noise cancellation.