Bose - QuietComfort Earbuds (II) vs Sony - LinkBuds Fit
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Bose - QuietComfort Earbuds (II) | Sony - LinkBuds Fit |
|---|---|---|
| Battery — with case | 18 h | 21 h |
| Driver size | 9.3 mm | 8.4 mm |
| Battery — buds | 6 h | 5.5 h |
| Weight per bud | 6.2 g | 4.9 g |
| Spatial audio | false | true |
| Multipoint | false | true |
Between the QuietComfort Earbuds (II) and LinkBuds Fit, the QuietComfort Earbuds (II) comes out ahead in driver size / battery — buds, while the LinkBuds Fit wins on battery — with case / weight per bud. Overall, the QuietComfort Earbuds (II) scores 70.9 and the LinkBuds Fit scores 69.4 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (70.9 vs 69.4). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the QuietComfort Earbuds (II) 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 — buds. The single most decisive one: Driver size — 10.71% more. 9.3 mm vs 8.4 mm.
Pick the LinkBuds Fit if audio quality and feature breadth (ANC, codecs, multipoint) are the lead criteria for your purchase. Its strongest claims are battery — with case, weight per bud, spatial audio, among others. The single most decisive one: Battery — with case — 16.67% more. 21 h vs 18 h.
Both ship with comparable active noise cancellation, water resistance, 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: Bose - QuietComfort Earbuds (II) or Sony - LinkBuds Fit?
Bose - QuietComfort Earbuds (II) leads the current Mars Score by 1.5 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 Bose - QuietComfort Earbuds (II) if…
Bose - QuietComfort Earbuds (II) has the measurable edge on driver size mm, battery life buds h.
Choose Sony - LinkBuds Fit if…
Sony - LinkBuds Fit has the measurable edge on battery life case h, weight per bud g, has spatial audio.
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 Bose - QuietComfort Earbuds (II) wins
- ▲Driver size — 10.71% more. 9.3 mm vs 8.4 mm.
- ▲Battery — buds — 9.09% more. 6 h vs 5.5 h.
Why Sony - LinkBuds Fit wins
- ▲Battery — with case — 16.67% more. 21 h vs 18 h.
- ▲Weight per bud — 1.30 g less. 4.9 vs 6.2.
- ▲Has Spatial audio.
- ▲Has Multipoint.
Spec comparison
Design
| Spec | Bose - QuietComfort Earbuds (II) | Sony - LinkBuds Fit |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 6.2 g | 4.9 glead |
| Water resistanceⓘ | IPX4 | IPX4 |
Audio
| Spec | Bose - QuietComfort Earbuds (II) | Sony - LinkBuds Fit |
|---|---|---|
| Driver sizeⓘ | 9.3 mmlead | 8.4 mm |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | false | truelead |
Battery
| Spec | Bose - QuietComfort Earbuds (II) | Sony - LinkBuds Fit |
|---|---|---|
| Battery — buds | 6 hlead | 5.5 h |
| Battery — with case | 18 h | 21 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Bose - QuietComfort Earbuds (II) | Sony - LinkBuds Fit |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.3 |
| Codecsⓘ | AAC,SBC | LDAC,AAC,SBC |
| Multipointⓘ | false | truelead |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, QuietComfort Earbuds (II) or LinkBuds Fit?+
QuietComfort Earbuds (II) lasts 6h per charge vs 5.5h.
Do QuietComfort Earbuds (II) or LinkBuds Fit support multipoint?+
LinkBuds Fit supports multipoint pairing; QuietComfort Earbuds (II) does not.
Which has ANC, QuietComfort Earbuds (II) or LinkBuds Fit?+
Both models have active noise cancellation.