The catch
Sony WH-1000XM6
USB-C charges it but carries no digital audio.
Side by side
For a lighter, folding travel setup, go with WH-1000XM6. MOMENTUM 4 fits better when you want long stretches between charges, and it adds USB audio next to its analog cable.
Before you buy
If you listen eight hours a day, Sony WH-1000XM6 claims the equivalent of 3.8 days in standard ANC mode and Sennheiser MOMENTUM 4 Wireless claims 7.5 days. Leave some headroom for real use.
Where this comes from
Formula: claimed ANC runtime / 8 hours per day, with 30 and 60 hours as inputs. It converts separate manufacturer maximums for planning and is not a measured endurance result.
The catch
USB-C charges it but carries no digital audio.
The catch
The cups swivel flat, yet they do not fold inward.


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WH-1000XM6 is the choice for a lighter, folding travel setup, while MOMENTUM 4 suits long stretches between charges and brings USB audio alongside its analog cable.
Sony is easier to fit in a travel bag
Day to day
At a desk with power, both stay useful, but they connect differently. Sony keeps its wireless connection going while it charges. MOMENTUM 4 carries computer audio and microphone input over the charging USB cable. If keeping the Bluetooth session alive matters, pick Sony. If the job is a wired laptop setup, pick Sennheiser. Either way, you do not need to estimate how many advertised battery hours a given call uses.
Charging on XM6 while in use stops at around 80 percent. For USB on MOMENTUM 4, the instructions have you pick the system playback and recording devices, after first disconnecting any existing Bluetooth links.
An analog lead works well for in-flight entertainment, yet it changes more than how the audio travels. On MOMENTUM 4 the music, phone-call and assistant controls stop working, and Sony instructs you to operate the source and speak into the phone’s microphone for calls. Either one is fine for a plain seat-back movie. If you must speak hands-free at your next destination, first get a verified Bluetooth or USB calling route working again.
Plugging in the analog cable switches Bluetooth off according to both manuals. The documented passive listening path is therefore no guarantee of a simultaneous phone connection or functioning headset call controls.
Which one fits
At 254 grams, XM6 folds inward. MOMENTUM 4 weighs 293 grams and cannot fold inward, which means its long battery claim comes in a less compact design.
Digital USB audio works on MOMENTUM 4. XM6 uses its USB connection only for charging, so a wired computer setup there relies on the analog input.
With noise cancellation on, the claims are 30 and 60 hours. Calls, codec choice, volume and other modes can cut them short, and they say nothing about which cancels noise better.
MOMENTUM 4 claims 60 hours with noise cancellation to Sony’s 30, but XM6 is about 13% lighter.
In practice
If you listen eight hours a day, Sony WH-1000XM6 claims the equivalent of 3.8 days in standard ANC mode and Sennheiser MOMENTUM 4 Wireless claims 7.5 days. Leave some headroom for real use.
Formula: claimed ANC runtime / 8 hours per day, with 30 and 60 hours as inputs. It converts separate manufacturer maximums for planning and is not a measured endurance result.
Sony WH-1000XM6 comes in at 254 grams and Sennheiser MOMENTUM 4 Wireless at 293 grams, which is 39 grams apart. Comfort still depends on clamp force, fit and padding.
The absolute weight difference is |254 - 293| grams. Cases and most accessories are not part of manufacturer headset weights.
MOMENTUM 4 claims 60 hours with noise cancellation to Sony’s 30, but XM6 is about 13% lighter.
Working: 293 - 254 = 39 g, then 39 / 293 × 100 = 13.3%, and 60 / 30 = 2. Test conditions differ between manufacturers.
Plug in your setup
Start with how you listen. Charging over USB is not the same as playing audio over USB, and some headphones need power even on a cable. These answers are placeholders until you apply your own.
Plays over Bluetooth.
Plays over Bluetooth.
Battery figures are maker claims for the stated mode. They do not reflect measured travel time. Volume, codec, calls and battery age all change runtime. Closed earcups can still leak some sound. Weight alone does not predict comfort. USB audio needs a compatible source and cable. This check does not judge sound quality, mic quality or amplifier power.

Sony, WH-1000XM6
A folding travel pair that keeps a cable backup for when the battery dies. Pick it over the XM5 for the smaller packed size, because its advertised battery life is no longer.

Sennheiser, MOMENTUM 4 Wireless
If you would rather charge rarely than fold the headphones small, this is a strong fit. It combines a 60-hour ANC claim with USB audio and a passive analog fallback.
Spec by spec
| Spec | Sony WH-1000XM6 | Sennheiser MOMENTUM 4 Wireless | In practice |
|---|---|---|---|
| Headphone weight | 254 g | 293 g | The figure leaves out the case, accessories and cables. |
| Standard ANC battery claim | Up to 30 h | Up to 60 h | Runtime can drop with volume, calls, codec choice and special modes. |
| USB digital audio | No | Yes | Having a charging port does not by itself mean audio is supported. |
| Battery-free analog playback | Yes | Yes | Powered noise cancellation is not part of passive listening. |
| Folds inward | Yes | No | Folding affects the shape you pack in addition to the headphone's weight. |
| Two-device Bluetooth multipoint | Yes | Yes | Automatic switching tied to one brand is a separate feature. |
Trade-offs
Decision guide
Pick WH-1000XM6 for a lighter, folding travel setup. Pick MOMENTUM 4 when you want long stretches between charges and USB audio alongside the analog cable.
At 254 grams, XM6 folds inward. MOMENTUM 4 weighs 293 grams and cannot fold inward, which means its long battery claim comes in a less compact design.
Digital USB audio works on MOMENTUM 4. XM6 uses its USB connection only for charging, so a wired computer setup there relies on the analog input.
With noise cancellation on, the claims are 30 and 60 hours. Calls, codec choice, volume and other modes can cut them short, and they say nothing about which cancels noise better.
By the numbers
What we found across the headphones we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Sony WH-1000XM6 |
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| Sennheiser MOMENTUM 4 Wireless |
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