Master & Dynamic - MW09 vs Bose - QuietComfort Ultra Earbuds 2
Between the MW09 and QuietComfort Ultra Earbuds 2, the MW09 comes out ahead in battery — buds and battery — with case, while the QuietComfort Ultra Earbuds 2 wins on spatial audio. Overall, the MW09 scores 79.3 and the QuietComfort Ultra Earbuds 2 scores 58.4 on our Mars Score.
Which should you buy?
The MW09 is the clear pick on raw spec strength, leading by 20.9 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 MW09 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 battery — buds, battery — with case, driver size, among others.
Pick the QuietComfort Ultra Earbuds 2 if audio quality and feature breadth (ANC, codecs, multipoint) are the lead criteria for your purchase. Its strongest claims are spatial audio.
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 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.
- ▲Driver size — 18.28% more. 11 mm vs 9.3 mm.
- ▲Water resistance: IP57 (vs IPX4).
- ▲Weight per bud — 0.20 g less. 6 vs 6.2.
Why Bose - QuietComfort Ultra Earbuds 2 wins
- ▲Has Spatial audio.
Spec comparison
Design
| Spec | Master & Dynamic - MW09 | Bose - QuietComfort Ultra Earbuds 2 |
|---|---|---|
| Form factor | in-ear | in-ear |
| Weight per bud | 6 glead | 6.2 g |
| Water resistanceⓘ | IP57lead | IPX4 |
Audio
| Spec | Master & Dynamic - MW09 | Bose - QuietComfort Ultra Earbuds 2 |
|---|---|---|
| Driver sizeⓘ | 11 mmlead | 9.3 mm |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | false | truelead |
Battery
| Spec | Master & Dynamic - MW09 | Bose - QuietComfort Ultra Earbuds 2 |
|---|---|---|
| Battery — buds | 16 hlead | 6 h |
| Battery — with case | 48 hlead | 24 h |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Master & Dynamic - MW09 | Bose - QuietComfort Ultra Earbuds 2 |
|---|---|---|
| Bluetoothⓘ | 5.4 | 5.4 |
| Codecs | aptX Lossless,aptX Adaptive,AAC,SBC | aptX Adaptive,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, MW09 or QuietComfort Ultra Earbuds 2?+
MW09 lasts 16h per charge vs 6h.
Do MW09 or QuietComfort Ultra Earbuds 2 support multipoint?+
Both support multipoint pairing.
Which has ANC, MW09 or QuietComfort Ultra Earbuds 2?+
Both have active noise cancellation.
Spec-level deep dives
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