Sennheiser - Momentum 4 Wireless vs Sony - ULT Wear 2
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Sennheiser - Momentum 4 Wireless | Sony - ULT Wear 2 |
|---|---|---|
| Weight | 293 g | 255 g |
| Battery life | 60 h | 50 h |
| Driver size | 42 mm | 40 mm |
Between the Momentum 4 Wireless and ULT Wear 2, the Momentum 4 Wireless comes out ahead in battery life / driver size, while the ULT Wear 2 wins on weight. Overall, the Momentum 4 Wireless scores 76.3 and the ULT Wear 2 scores 75.1 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (76.3 vs 75.1). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Momentum 4 Wireless 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. The single most decisive one: Battery life — 20.00% more. 60 h vs 50 h.
Pick the ULT Wear 2 if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight. The single most decisive one: Weight — 38.00 g less. 255 vs 293.
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: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Sennheiser - Momentum 4 Wireless or Sony - ULT Wear 2?
Sennheiser - Momentum 4 Wireless leads the current Mars Score by 1.2 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 Sennheiser - Momentum 4 Wireless if…
Sennheiser - Momentum 4 Wireless has the measurable edge on battery life h, driver size mm.
Choose Sony - ULT Wear 2 if…
Sony - ULT Wear 2 has the measurable edge on weight g.
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 Sennheiser - Momentum 4 Wireless wins
- ▲Battery life — 20.00% more. 60 h vs 50 h.
- ▲Driver size — 5.00% more. 42 mm vs 40 mm.
Why Sony - ULT Wear 2 wins
- ▲Weight — 38.00 g less. 255 vs 293.
Spec comparison
Design
| Spec | Sennheiser - Momentum 4 Wireless | Sony - ULT Wear 2 |
|---|---|---|
| Type | over-ear | over-ear |
| Weight | 293 g | 255 glead |
| Water resistance | none | none |
Audio
| Spec | Sennheiser - Momentum 4 Wireless | Sony - ULT Wear 2 |
|---|---|---|
| Driver sizeⓘ | 42 mmlead | 40 mm |
| Impedanceⓘ | 60 Ωlead | 32 Ω |
| Sensitivityⓘ | 106 dBlead | 100 dB |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | false | false |
Battery
| Spec | Sennheiser - Momentum 4 Wireless | Sony - ULT Wear 2 |
|---|---|---|
| Battery lifeⓘ | 60 hlead | 50 h |
| Fast chargeⓘ | true | true |
Connectivity
| Spec | Sennheiser - Momentum 4 Wireless | Sony - ULT Wear 2 |
|---|---|---|
| Bluetoothⓘ | 5.2 | 5.3lead |
| Multipointⓘ | true | true |
| 3.5mm jack | true | true |
| LDACⓘ | true | true |
| aptX HDⓘ | truelead | false |
Frequently asked
Which has better battery life, Momentum 4 Wireless or ULT Wear 2?+
Momentum 4 Wireless lasts 60 hours vs 50 hours.
Do Momentum 4 Wireless or ULT Wear 2 have active noise cancellation?+
Both models have active noise cancellation.
Which supports LDAC, Momentum 4 Wireless or ULT Wear 2?+
Both support LDAC.