Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | OnePlus - Buds Pro 3 | Google - Pixel Buds Pro 2 |
|---|---|---|
| Battery — with case | 43 h | 30 h |
| Battery — buds | 10 h | 8 h |
| Water resistance | IP55 | IP54 |
| Weight per bud | 4.8 g | 4.7 g |
Between the Buds Pro 3 and Pixel Buds Pro 2, the Buds Pro 3 comes out ahead in battery — with case / battery — buds, while the Pixel Buds Pro 2 wins on weight per bud. Overall, the Buds Pro 3 scores 82.8 and the Pixel Buds Pro 2 scores 78.7 on our Mars Score.
Which should you buy?
The Buds Pro 3 edges ahead on the Mars Score (82.8 vs 78.7), but the 4.1-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Buds Pro 3 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are battery — with case, battery — buds, water resistance. The single most decisive one: Battery — with case — 43.33% more. 43 h vs 30 h.
Pick the Pixel Buds Pro 2 if you care most about weight per bud. Its strongest claims are weight per bud. The single most decisive one: Weight per bud — 0.10 g less. 4.7 vs 4.8.
Both ship with comparable active noise cancellation, driver size, spatial audio, 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 Google - Pixel Buds Pro 2?
OnePlus - Buds Pro 3 leads the current Mars Score by 4.1 points.The more useful decision is the trade-off behind that result: compare 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 battery life case h, battery life buds h, ip rating.
Choose Google - Pixel Buds Pro 2 if…
Google - Pixel Buds Pro 2 has the measurable edge on 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
- ▲Battery — with case — 43.33% more. 43 h vs 30 h.
- ▲Battery — buds — 25.00% more. 10 h vs 8 h.
- ▲Water resistance: IP55 (vs IP54).
Why Google - Pixel Buds Pro 2 wins
- ▲Weight per bud — 0.10 g less. 4.7 vs 4.8.
Spec comparison
Design
| Spec | OnePlus - Buds Pro 3 | Google - Pixel Buds Pro 2 |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 4.8 g | 4.7 glead |
| Water resistanceⓘ | IP55lead | IP54 |
Audio
| Spec | OnePlus - Buds Pro 3 | Google - Pixel Buds Pro 2 |
|---|---|---|
| Driver sizeⓘ | 11 mm | 11 mm |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | true | true |
Battery
| Spec | OnePlus - Buds Pro 3 | Google - Pixel Buds Pro 2 |
|---|---|---|
| Battery — buds | 10 hlead | 8 h |
| Battery — with case | 43 hlead | 30 h |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | OnePlus - Buds Pro 3 | Google - Pixel Buds Pro 2 |
|---|---|---|
| Bluetoothⓘ | 5.4lead | 5.3 |
| Codecsⓘ | LHDC,LDAC,AAC,SBC | AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, Buds Pro 3 or Pixel Buds Pro 2?+
Buds Pro 3 lasts 10h per charge vs 8h.
Do Buds Pro 3 or Pixel Buds Pro 2 support multipoint?+
Both support multipoint pairing.
Which has ANC, Buds Pro 3 or Pixel Buds Pro 2?+
Both models have active noise cancellation.