Apple - AirPods 4 with ANC vs Master & Dynamic - MW09
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Apple - AirPods 4 with ANC | Master & Dynamic - MW09 |
|---|---|---|
| Battery — buds | 5 h | 16 h |
| Battery — with case | 20 h | 48 h |
| Driver size | 10 mm | 11 mm |
| Weight per bud | 4.3 g | 6 g |
| Spatial audio | true | false |
| Multipoint | false | true |
Between the AirPods 4 with ANC and MW09, the AirPods 4 with ANC comes out ahead in weight per bud / spatial audio, while the MW09 wins on battery — buds / battery — with case. Overall, the AirPods 4 with ANC scores 71.1 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 15.0 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 AirPods 4 with ANC 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 — 1.70 g less. 4.3 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, driver size, among others. The single most decisive one: Battery — buds — 220.00% more. 16 h vs 5 h.
Both ship with comparable active noise cancellation, 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: Apple - AirPods 4 with ANC or Master & Dynamic - MW09?
Master & Dynamic - MW09 leads the current Mars Score by 15.0 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 Apple - AirPods 4 with ANC if…
Apple - AirPods 4 with ANC 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, driver size mm.
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 Apple - AirPods 4 with ANC wins
- ▲Weight per bud — 1.70 g less. 4.3 vs 6.
- ▲Has Spatial audio.
Why Master & Dynamic - MW09 wins
- ▲Battery — buds — 220.00% more. 16 h vs 5 h.
- ▲Battery — with case — 140.00% more. 48 h vs 20 h.
- ▲Driver size — 10.00% more. 11 mm vs 10 mm.
- ▲Has Multipoint.
- ▲Water resistance: IP57 (vs IP54).
Spec comparison
Design
| Spec | Apple - AirPods 4 with ANC | Master & Dynamic - MW09 |
|---|---|---|
| Form factor | openlead | in-ear |
| Weight per bud | 4.3 glead | 6 g |
| Water resistanceⓘ | IP54 | IP57lead |
Audio
| Spec | Apple - AirPods 4 with ANC | Master & Dynamic - MW09 |
|---|---|---|
| Driver sizeⓘ | 10 mm | 11 mmlead |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | Apple - AirPods 4 with ANC | Master & Dynamic - MW09 |
|---|---|---|
| Battery — buds | 5 h | 16 hlead |
| Battery — with case | 20 h | 48 hlead |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | Apple - AirPods 4 with ANC | Master & Dynamic - MW09 |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.4lead |
| Codecsⓘ | AAC,SBC | aptX Lossless,aptX Adaptive,AAC,SBC |
| Multipointⓘ | false | truelead |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, AirPods 4 with ANC or MW09?+
MW09 lasts 16h per charge vs 5h.
Do AirPods 4 with ANC or MW09 support multipoint?+
MW09 supports multipoint pairing; AirPods 4 with ANC does not.
Which has ANC, AirPods 4 with ANC or MW09?+
Both models have active noise cancellation.