Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Samsung - Galaxy Buds 3 Pro | Sony - LinkBuds Fit |
|---|---|---|
| Driver size | 10.5 mm | 8.4 mm |
| Battery — with case | 26 h | 21 h |
| Battery — buds | 6 h | 5.5 h |
| Water resistance | IP57 | IPX4 |
| Weight per bud | 5.4 g | 4.9 g |
Between the Galaxy Buds 3 Pro and LinkBuds Fit, the Galaxy Buds 3 Pro comes out ahead in driver size / battery — with case, while the LinkBuds Fit wins on weight per bud. Overall, the Galaxy Buds 3 Pro scores 73.2 and the LinkBuds Fit scores 69.4 on our Mars Score.
Which should you buy?
The Galaxy Buds 3 Pro edges ahead on the Mars Score (73.2 vs 69.4), but the 3.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Galaxy Buds 3 Pro 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 driver size, battery — with case, battery — buds, among others. The single most decisive one: Driver size — 25.00% more. 10.5 mm vs 8.4 mm.
Pick the LinkBuds Fit if you care most about weight per bud. Its strongest claims are weight per bud. The single most decisive one: Weight per bud — 0.50 g less. 4.9 vs 5.4.
Both ship with comparable active noise cancellation, spatial audio, 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: Samsung - Galaxy Buds 3 Pro or Sony - LinkBuds Fit?
Samsung - Galaxy Buds 3 Pro leads the current Mars Score by 3.8 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 Samsung - Galaxy Buds 3 Pro if…
Samsung - Galaxy Buds 3 Pro has the measurable edge on driver size mm, battery life case h, battery life buds h.
Choose Sony - LinkBuds Fit if…
Sony - LinkBuds Fit 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 Samsung - Galaxy Buds 3 Pro wins
- ▲Driver size — 25.00% more. 10.5 mm vs 8.4 mm.
- ▲Battery — with case — 23.81% more. 26 h vs 21 h.
- ▲Battery — buds — 9.09% more. 6 h vs 5.5 h.
- ▲Water resistance: IP57 (vs IPX4).
Why Sony - LinkBuds Fit wins
- ▲Weight per bud — 0.50 g less. 4.9 vs 5.4.
Spec comparison
Design
| Spec | Samsung - Galaxy Buds 3 Pro | Sony - LinkBuds Fit |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 5.4 g | 4.9 glead |
| Water resistanceⓘ | IP57lead | IPX4 |
Audio
| Spec | Samsung - Galaxy Buds 3 Pro | Sony - LinkBuds Fit |
|---|---|---|
| Driver sizeⓘ | 10.5 mmlead | 8.4 mm |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | true | true |
Battery
| Spec | Samsung - Galaxy Buds 3 Pro | Sony - LinkBuds Fit |
|---|---|---|
| Battery — buds | 6 hlead | 5.5 h |
| Battery — with case | 26 hlead | 21 h |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Samsung - Galaxy Buds 3 Pro | Sony - LinkBuds Fit |
|---|---|---|
| Bluetoothⓘ | 5.4lead | 5.3 |
| Codecsⓘ | SSC,AAC,SBC | LDAC,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, Galaxy Buds 3 Pro or LinkBuds Fit?+
Galaxy Buds 3 Pro lasts 6h per charge vs 5.5h.
Do Galaxy Buds 3 Pro or LinkBuds Fit support multipoint?+
Both support multipoint pairing.
Which has ANC, Galaxy Buds 3 Pro or LinkBuds Fit?+
Both models have active noise cancellation.