Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Samsung - Galaxy Buds 3 | Master & Dynamic - MW09 |
|---|---|---|
| Battery — buds | 6 h | 16 h |
| Battery — with case | 24 h | 48 h |
| Weight per bud | 4.7 g | 6 g |
| Spatial audio | true | false |
Between the Galaxy Buds 3 and MW09, the Galaxy Buds 3 comes out ahead in weight per bud / spatial audio, while the MW09 wins on battery — buds / battery — with case. Overall, the Galaxy Buds 3 scores 74.4 and the MW09 scores 86.1 on our Mars Score.
Which should you buy?
The MW09 is the clear pick on raw spec strength, leading by 11.7 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 Galaxy Buds 3 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. The single most decisive one: Weight per bud — 1.30 g less. 4.7 vs 6.
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. The single most decisive one: Battery — buds — 166.67% more. 16 h vs 6 h.
Both ship with comparable active noise cancellation, driver size, water resistance, so those specs do not 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.
Which should you buy: Samsung - Galaxy Buds 3 or Master & Dynamic - MW09?
Master & Dynamic - MW09 leads the current Mars Score by 11.7 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 Samsung - Galaxy Buds 3 if…
Samsung - Galaxy Buds 3 has the measurable edge on weight per bud g, has spatial audio.
Choose Master & Dynamic - MW09 if…
Master & Dynamic - MW09 has the measurable edge on battery life buds h, 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 Samsung - Galaxy Buds 3 wins
- ▲Weight per bud — 1.30 g less. 4.7 vs 6.
- ▲Has Spatial audio.
Why Master & Dynamic - MW09 wins
- ▲Battery — buds — 166.67% more. 16 h vs 6 h.
- ▲Battery — with case — 100.00% more. 48 h vs 24 h.
Spec comparison
Design
| Spec | Samsung - Galaxy Buds 3 | Master & Dynamic - MW09 |
|---|---|---|
| Form factor | openlead | in-ear |
| Weight per bud | 4.7 glead | 6 g |
| Water resistanceⓘ | IP57 | IP57 |
Audio
| Spec | Samsung - Galaxy Buds 3 | Master & Dynamic - MW09 |
|---|---|---|
| Driver sizeⓘ | 11 mm | 11 mm |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | Samsung - Galaxy Buds 3 | Master & Dynamic - MW09 |
|---|---|---|
| Battery — buds | 6 h | 16 hlead |
| Battery — with case | 24 h | 48 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Samsung - Galaxy Buds 3 | Master & Dynamic - MW09 |
|---|---|---|
| Bluetoothⓘ | 5.4 | 5.4 |
| Codecsⓘ | SSC,AAC,SBC | aptX Lossless,aptX Adaptive,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, Galaxy Buds 3 or MW09?+
MW09 lasts 16h per charge vs 6h.
Do Galaxy Buds 3 or MW09 support multipoint?+
Both support multipoint pairing.
Which has ANC, Galaxy Buds 3 or MW09?+
Both models have active noise cancellation.