Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Sony - LinkBuds Fit | Sony - LinkBuds Open |
|---|---|---|
| Battery — buds | 5.5 h | 8 h |
| Driver size | 8.4 mm | 11 mm |
| Battery — with case | 21 h | 22 h |
| Active noise cancellation | true | false |
| Weight per bud | 4.9 g | 5.1 g |
Between the LinkBuds Fit and LinkBuds Open, the LinkBuds Fit comes out ahead in active noise cancellation / weight per bud, while the LinkBuds Open wins on battery — buds / driver size. Overall, the LinkBuds Fit scores 69.4 and the LinkBuds Open scores 63.6 on our Mars Score.
Which should you buy?
The LinkBuds Fit edges ahead on the Mars Score (69.4 vs 63.6), but the 5.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
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 active noise cancellation, weight per bud. The single most decisive one: Has Active noise cancellation.
Pick the LinkBuds Open 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, driver size, battery — with case. The single most decisive one: Battery — buds — 45.45% more. 8 h vs 5.5 h.
Both ship with comparable water resistance, spatial audio, multipoint, so those specs do not separate the two — focus on the differences below.
Bottom line: the LinkBuds Fit 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 Sony - LinkBuds Open?
Sony - LinkBuds Fit leads the current Mars Score by 5.8 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 Sony - LinkBuds Fit if…
Sony - LinkBuds Fit has the measurable edge on has anc, weight per bud g.
Choose Sony - LinkBuds Open if…
Sony - LinkBuds Open has the measurable edge on battery life buds h, driver size mm, battery life case h.
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 Active noise cancellation.
- ▲Weight per bud — 0.20 g less. 4.9 vs 5.1.
Why Sony - LinkBuds Open wins
- ▲Battery — buds — 45.45% more. 8 h vs 5.5 h.
- ▲Driver size — 30.95% more. 11 mm vs 8.4 mm.
- ▲Battery — with case — 4.76% more. 22 h vs 21 h.
Spec comparison
Design
| Spec | Sony - LinkBuds Fit | Sony - LinkBuds Open |
|---|---|---|
| Form factor | in-ear | openlead |
| Weight per bud | 4.9 glead | 5.1 g |
| Water resistanceⓘ | IPX4 | IPX4 |
Audio
| Spec | Sony - LinkBuds Fit | Sony - LinkBuds Open |
|---|---|---|
| Driver sizeⓘ | 8.4 mm | 11 mmlead |
| Active noise cancellationⓘ | truelead | false |
| Transparency mode | truelead | false |
| Spatial audioⓘ | true | true |
Battery
| Spec | Sony - LinkBuds Fit | Sony - LinkBuds Open |
|---|---|---|
| Battery — buds | 5.5 h | 8 hlead |
| Battery — with case | 21 h | 22 hlead |
| Wireless case chargingⓘ | truelead | false |
Connectivity
| Spec | Sony - LinkBuds Fit | Sony - LinkBuds Open |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.3 |
| Codecsⓘ | LDAC,AAC,SBC | AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | truelead | false |
Frequently asked
Which has longer battery, LinkBuds Fit or LinkBuds Open?+
LinkBuds Open lasts 8h per charge vs 5.5h.
Do LinkBuds Fit or LinkBuds Open support multipoint?+
Both support multipoint pairing.
Which has ANC, LinkBuds Fit or LinkBuds Open?+
LinkBuds Fit has active noise cancellation; LinkBuds Open does not.