Between the LinkBuds Fit and MW09, the LinkBuds Fit comes out ahead in weight per bud and spatial audio, while the MW09 wins on battery — buds and battery — with case. Overall, the LinkBuds Fit scores 53.8 and the MW09 scores 79.3 on our Mars Score.
Which should you buy?
The MW09 is the clear pick on raw spec strength, leading by 25.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
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 weight per bud, spatial audio.
Pick the MW09 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, battery — with case, driver size, among others.
Both ship with comparable active noise cancellation, multipoint, so those specs don't separate the two — focus on the differences below.
Bottom line: the MW09 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Sony - LinkBuds Fit wins
- ▲Weight per bud — 1.10 g less. 4.9 vs 6.
- ▲Has Spatial audio.
Why Master & Dynamic - MW09 wins
- ▲Battery — buds — 190.91% more. 16 h vs 5.5 h.
- ▲Battery — with case — 128.57% more. 48 h vs 21 h.
- ▲Driver size — 30.95% more. 11 mm vs 8.4 mm.
- ▲Water resistance: IP57 (vs IPX4).
Spec comparison
Design
| Spec | Sony - LinkBuds Fit | Master & Dynamic - MW09 |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 4.9 glead | 6 g |
| Water resistanceⓘ | IPX4 | IP57lead |
Audio
| Spec | Sony - LinkBuds Fit | Master & Dynamic - MW09 |
|---|---|---|
| Driver sizeⓘ | 8.4 mm | 11 mmlead |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | Sony - LinkBuds Fit | Master & Dynamic - MW09 |
|---|---|---|
| Battery — buds | 5.5 h | 16 hlead |
| Battery — with case | 21 h | 48 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Sony - LinkBuds Fit | Master & Dynamic - MW09 |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.4lead |
| Codecs | LDAC,AAC,SBC | aptX Lossless,aptX Adaptive,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, LinkBuds Fit or MW09?+
MW09 lasts 16h per charge vs 5.5h.
Do LinkBuds Fit or MW09 support multipoint?+
Both support multipoint pairing.
Which has ANC, LinkBuds Fit or MW09?+
Both have active noise cancellation.
Spec-level deep dives
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