Between the ATH-M50xBT2 and ULT Wear 2, the ATH-M50xBT2 comes out ahead in driver size, while the ULT Wear 2 wins on weight and active noise cancellation. Overall, the ATH-M50xBT2 scores 74.2 and the ULT Wear 2 scores 70.9 on our Mars Score.
Which should you buy?
The ATH-M50xBT2 edges ahead on the Mars Score (74.2 vs 70.9), but the 3.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the ATH-M50xBT2 if you care most about driver size. The biggest gaps in its favor are driver size.
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, active noise cancellation.
Both ship with comparable battery life, spatial audio, multipoint, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Audio-Technica - ATH-M50xBT2 wins
- ▲Driver size — 12.50% more. 45 mm vs 40 mm.
Why Sony - ULT Wear 2 wins
- ▲Weight — 52.00 g less. 255 vs 307.
- ▲Has Active noise cancellation.
Spec comparison
Design
| Spec | Audio-Technica - ATH-M50xBT2 | Sony - ULT Wear 2 |
|---|---|---|
| Type | over-ear | over-ear |
| Weight | 307 g | 255 glead |
| Water resistance | none | none |
Audio
| Spec | Audio-Technica - ATH-M50xBT2 | Sony - ULT Wear 2 |
|---|---|---|
| Driver sizeⓘ | 45 mmlead | 40 mm |
| Impedanceⓘ | 38 Ωlead | 32 Ω |
| Sensitivityⓘ | 99 dB | 100 dBlead |
| Active noise cancellationⓘ | false | truelead |
| Transparency mode | false | truelead |
| Spatial audioⓘ | false | false |
Battery
| Spec | Audio-Technica - ATH-M50xBT2 | Sony - ULT Wear 2 |
|---|---|---|
| Battery life | 50 h | 50 h |
| Fast chargeⓘ | true | true |
Connectivity
| Spec | Audio-Technica - ATH-M50xBT2 | Sony - ULT Wear 2 |
|---|---|---|
| Bluetoothⓘ | 5.0 | 5.3lead |
| Multipointⓘ | true | true |
| 3.5mm jack | true | true |
| LDACⓘ | true | true |
| aptX HDⓘ | truelead | false |
Frequently asked
Which has better battery life, ATH-M50xBT2 or ULT Wear 2?+
ULT Wear 2 lasts 50 hours vs 50 hours.
Do ATH-M50xBT2 or ULT Wear 2 have active noise cancellation?+
ULT Wear 2 has ANC; ATH-M50xBT2 does not.
Which supports LDAC, ATH-M50xBT2 or ULT Wear 2?+
Both support LDAC.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.