Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | OnePlus - Buds Pro 3 | Anker - Liberty 5 |
|---|---|---|
| Battery — buds | 10 h | 12 h |
| Battery — with case | 43 h | 48 h |
| Driver size | 11 mm | 10 mm |
| Spatial audio | true | false |
| Weight per bud | 4.8 g | 4.5 g |
Between the Buds Pro 3 and Liberty 5, the Buds Pro 3 comes out ahead in driver size / spatial audio, while the Liberty 5 wins on battery — buds / battery — with case. Overall, the Buds Pro 3 scores 82.8 and the Liberty 5 scores 85.8 on our Mars Score.
Which should you buy?
The Liberty 5 edges ahead on the Mars Score (82.8 vs 85.8), but the 3.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Buds Pro 3 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. The single most decisive one: Driver size — 10.00% more. 11 mm vs 10 mm.
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. The single most decisive one: Battery — buds — 20.00% more. 12 h vs 10 h.
Both ship with comparable active noise cancellation, water resistance, multipoint, 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.
Which should you buy: OnePlus - Buds Pro 3 or Anker - Liberty 5?
Anker - Liberty 5 leads the current Mars Score by 3.0 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 OnePlus - Buds Pro 3 if…
OnePlus - Buds Pro 3 has the measurable edge on driver size mm, has spatial audio.
Choose Anker - Liberty 5 if…
Anker - Liberty 5 has the measurable edge on battery life buds h, battery life case h, weight per bud g.
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 OnePlus - Buds Pro 3 wins
- ▲Driver size — 10.00% more. 11 mm vs 10 mm.
- ▲Has Spatial audio.
Why Anker - Liberty 5 wins
- ▲Battery — buds — 20.00% more. 12 h vs 10 h.
- ▲Battery — with case — 11.63% more. 48 h vs 43 h.
- ▲Weight per bud — 0.30 g less. 4.5 vs 4.8.
Spec comparison
Design
| Spec | OnePlus - Buds Pro 3 | Anker - Liberty 5 |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 4.8 g | 4.5 glead |
| Water resistanceⓘ | IP55 | IP55 |
Audio
| Spec | OnePlus - Buds Pro 3 | Anker - Liberty 5 |
|---|---|---|
| Driver sizeⓘ | 11 mmlead | 10 mm |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | OnePlus - Buds Pro 3 | Anker - Liberty 5 |
|---|---|---|
| Battery — buds | 10 h | 12 hlead |
| Battery — with case | 43 h | 48 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | OnePlus - Buds Pro 3 | Anker - Liberty 5 |
|---|---|---|
| Bluetoothⓘ | 5.4 | 5.4 |
| Codecsⓘ | LHDC,LDAC,AAC,SBC | LDAC,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, Buds Pro 3 or Liberty 5?+
Liberty 5 lasts 12h per charge vs 10h.
Do Buds Pro 3 or Liberty 5 support multipoint?+
Both support multipoint pairing.
Which has ANC, Buds Pro 3 or Liberty 5?+
Both models have active noise cancellation.