Between the QuietComfort Headphones and ULT Wear 2, the QuietComfort Headphones comes out ahead in weight, while the ULT Wear 2 wins on battery life / driver size. Overall, the QuietComfort Headphones scores 62.9 and the ULT Wear 2 scores 70.9 on our Mars Score.
Which should you buy?
The ULT Wear 2 is the clear pick on raw spec strength, leading by 8.0 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 QuietComfort Headphones if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight.
Pick the ULT Wear 2 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 life, driver size, ldac.
Both ship with comparable active noise cancellation, spatial audio, multipoint, so those specs do not separate the two — focus on the differences below.
Bottom line: the ULT Wear 2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Bose - QuietComfort Headphones wins
- ▲Weight — 15.00 g less. 240 vs 255.
Why Sony - ULT Wear 2 wins
- ▲Battery life — 108.33% more. 50 h vs 24 h.
- ▲Driver size — 14.29% more. 40 mm vs 35 mm.
- ▲Has LDAC.
Spec comparison
Design
| Spec | Bose - QuietComfort Headphones | Sony - ULT Wear 2 |
|---|---|---|
| Type | over-ear | over-ear |
| Weight | 240 glead | 255 g |
| Water resistance | none | none |
Audio
| Spec | Bose - QuietComfort Headphones | Sony - ULT Wear 2 |
|---|---|---|
| Driver sizeⓘ | 35 mm | 40 mmlead |
| Impedanceⓘ | 32 Ω | 32 Ω |
| Sensitivityⓘ | 98 dB | 100 dBlead |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | false | false |
Battery
| Spec | Bose - QuietComfort Headphones | Sony - ULT Wear 2 |
|---|---|---|
| Battery life | 24 h | 50 hlead |
| Fast chargeⓘ | true | true |
Connectivity
| Spec | Bose - QuietComfort Headphones | Sony - ULT Wear 2 |
|---|---|---|
| Bluetoothⓘ | 5.1 | 5.3lead |
| Multipointⓘ | true | true |
| 3.5mm jack | true | true |
| LDACⓘ | false | truelead |
| aptX HDⓘ | false | false |
Frequently asked
Which has better battery life, QuietComfort Headphones or ULT Wear 2?+
ULT Wear 2 lasts 50 hours vs 24 hours.
Do QuietComfort Headphones or ULT Wear 2 have active noise cancellation?+
Both models have active noise cancellation.
Which supports LDAC, QuietComfort Headphones or ULT Wear 2?+
ULT Wear 2 supports LDAC; QuietComfort Headphones does not.
Spec-level deep dives
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