Between the Pixel Buds Pro 2 and Liberty 4 Pro, the Pixel Buds Pro 2 comes out ahead in driver size and spatial audio, while the Liberty 4 Pro wins on battery — with case and battery — buds. Overall, the Pixel Buds Pro 2 scores 69.5 and the Liberty 4 Pro scores 72.8 on our Mars Score.
Which should you buy?
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 Pixel Buds Pro 2 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, among others.
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.
Both ship with comparable active noise cancellation, 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.
Why Google - Pixel Buds Pro 2 wins
- ▲Driver size — 4.76% more. 11 mm vs 10.5 mm.
- ▲Has Spatial audio.
- ▲Weight per bud — 0.90 g less. 4.7 vs 5.6.
- ▲Water resistance: IP54 (vs IPX4).
Why Anker - Liberty 4 Pro wins
- ▲Battery — with case — 33.33% more. 40 h vs 30 h.
- ▲Battery — buds — 25.00% more. 10 h vs 8 h.
Spec comparison
Design
| Spec | Google - Pixel Buds Pro 2 | Anker - Liberty 4 Pro |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 4.7 glead | 5.6 g |
| Water resistanceⓘ | IP54lead | IPX4 |
Audio
| Spec | Google - Pixel Buds Pro 2 | Anker - Liberty 4 Pro |
|---|---|---|
| Driver sizeⓘ | 11 mmlead | 10.5 mm |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | Google - Pixel Buds Pro 2 | Anker - Liberty 4 Pro |
|---|---|---|
| Battery — buds | 8 h | 10 hlead |
| Battery — with case | 30 h | 40 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Google - Pixel Buds Pro 2 | Anker - Liberty 4 Pro |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.4lead |
| Codecs | AAC,SBC | LDAC,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, Pixel Buds Pro 2 or Liberty 4 Pro?+
Liberty 4 Pro lasts 10h per charge vs 8h.
Do Pixel Buds Pro 2 or Liberty 4 Pro support multipoint?+
Both support multipoint pairing.
Which has ANC, Pixel Buds Pro 2 or Liberty 4 Pro?+
Both have active noise cancellation.
Spec-level deep dives
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