Beyerdynamic - Aventho 300 vs Bose - QuietComfort Ultra 2
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Beyerdynamic - Aventho 300 | Bose - QuietComfort Ultra 2 |
|---|---|---|
| Battery life | 60 h | 30 h |
| Driver size | 40 mm | 35 mm |
| Weight | 260 g | 253 g |
| LDAC | true | false |
| Spatial audio | false | true |
Between the Aventho 300 and QuietComfort Ultra 2, the Aventho 300 comes out ahead in battery life / driver size, while the QuietComfort Ultra 2 wins on weight / spatial audio. Overall, the Aventho 300 scores 76.4 and the QuietComfort Ultra 2 scores 70.8 on our Mars Score.
Which should you buy?
The Aventho 300 edges ahead on the Mars Score (76.4 vs 70.8), but the 5.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Aventho 300 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 life, driver size, ldac. The single most decisive one: Battery life — 100.00% more. 60 h vs 30 h.
Pick the QuietComfort Ultra 2 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight, spatial audio. The single most decisive one: Weight — 7.00 g less. 253 vs 260.
Both ship with comparable active noise cancellation, multipoint, water resistance, so those specs do not separate the two — focus on the differences below.
Bottom line: the Aventho 300 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: Beyerdynamic - Aventho 300 or Bose - QuietComfort Ultra 2?
Beyerdynamic - Aventho 300 leads the current Mars Score by 5.6 points.The more useful decision is the trade-off behind that result: compare driver size, battery life, weight against the way you will actually use the product.
Choose Beyerdynamic - Aventho 300 if…
Beyerdynamic - Aventho 300 has the measurable edge on battery life h, driver size mm, supports ldac.
Choose Bose - QuietComfort Ultra 2 if…
Bose - QuietComfort Ultra 2 has the measurable edge on weight 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 Beyerdynamic - Aventho 300 wins
- ▲Battery life — 100.00% more. 60 h vs 30 h.
- ▲Driver size — 14.29% more. 40 mm vs 35 mm.
- ▲Has LDAC.
Why Bose - QuietComfort Ultra 2 wins
- ▲Weight — 7.00 g less. 253 vs 260.
- ▲Has Spatial audio.
Spec comparison
Design
| Spec | Beyerdynamic - Aventho 300 | Bose - QuietComfort Ultra 2 |
|---|---|---|
| Type | over-ear | over-ear |
| Weight | 260 g | 253 glead |
| Water resistance | none | none |
Audio
| Spec | Beyerdynamic - Aventho 300 | Bose - QuietComfort Ultra 2 |
|---|---|---|
| Driver sizeⓘ | 40 mmlead | 35 mm |
| Impedanceⓘ | 32 Ω | 32 Ω |
| Sensitivityⓘ | 100 dBlead | 98 dB |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | false | truelead |
Battery
| Spec | Beyerdynamic - Aventho 300 | Bose - QuietComfort Ultra 2 |
|---|---|---|
| Battery lifeⓘ | 60 hlead | 30 h |
| Fast chargeⓘ | true | true |
Connectivity
| Spec | Beyerdynamic - Aventho 300 | Bose - QuietComfort Ultra 2 |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.4lead |
| Multipointⓘ | true | true |
| 3.5mm jack | true | true |
| LDACⓘ | truelead | false |
| aptX HDⓘ | true | true |
Frequently asked
Which has better battery life, Aventho 300 or QuietComfort Ultra 2?+
Aventho 300 lasts 60 hours vs 30 hours.
Do Aventho 300 or QuietComfort Ultra 2 have active noise cancellation?+
Both models have active noise cancellation.
Which supports LDAC, Aventho 300 or QuietComfort Ultra 2?+
Aventho 300 supports LDAC; QuietComfort Ultra 2 does not.