Main trade-off
Sony WH-1000XM6
USB-C is for charging, not digital audio.
Head-to-head
Choose WH-1000XM6 for a lighter, folding travel setup. MOMENTUM 4 suits long stretches between charges and adds USB audio alongside its analog cable.
Before you choose
At eight hours of listening per day, Sony WH-1000XM6 claims the equivalent of 3.8 days and Sennheiser MOMENTUM 4 Wireless 7.5 days in standard ANC mode. Leave headroom for real use.
What this is based on
Claimed ANC runtime / 8 hours per day. Inputs 30 and 60 hours. This is a planning conversion of separate manufacturer maximums, not a measured endurance result.
Main trade-off
USB-C is for charging, not digital audio.
Main trade-off
The earcups turn flat but do not fold inward.


Choose WH-1000XM6 for a lighter, folding travel setup. MOMENTUM 4 suits long stretches between charges and adds USB audio alongside its analog cable.
Sony makes the travel case easier to accommodate
Before you choose
Both can remain useful at a powered desk, but the connection plan differs. Sony can keep its wireless connection while charging. MOMENTUM 4 offers computer audio and microphone input through the charging USB cable. Choose Sony if continuing the Bluetooth session matters, or Sennheiser if the job is a wired laptop setup. Neither choice requires estimating how many advertised battery hours a particular call consumes.
XM6 charging during use stops near 80 percent. MOMENTUM 4’s USB instructions select system playback and recording devices and ask users to disconnect existing Bluetooth links before setup.
An analog lead is useful for aircraft entertainment, but it changes more than the audio transport. MOMENTUM 4 loses its music, phone-call and assistant controls, while Sony tells you to control the source and speak into the phone microphone for calls. Choose either for a simple seat-back movie. If hands-free speaking is required at the next destination, restore a verified Bluetooth or USB calling route first.
Both manuals disable Bluetooth when the analog cable is inserted. The documented passive listening path should therefore never be treated as a promise of simultaneous phone connectivity or working headset call controls.
Winner by situation
XM6 folds inward and weighs 254 grams. MOMENTUM 4 weighs 293 grams and does not fold inward, so its long battery claim comes in a less compact design.
MOMENTUM 4 supports digital USB audio. The USB connection on XM6 is for charging, so a wired computer setup uses its analog input instead.
The claims are 30 and 60 hours with noise cancellation. Calls, codec choice, volume and other modes can shorten them, and they do not establish which cancels noise better.
XM6 is about 13% lighter, while MOMENTUM 4 claims 60 hours against Sony at 30 with noise cancellation.
What matters in practice
At eight hours of listening per day, Sony WH-1000XM6 claims the equivalent of 3.8 days and Sennheiser MOMENTUM 4 Wireless 7.5 days in standard ANC mode. Leave headroom for real use.
Claimed ANC runtime / 8 hours per day. Inputs 30 and 60 hours. This is a planning conversion of separate manufacturer maximums, not a measured endurance result.
Sony WH-1000XM6 weighs 254 grams and Sennheiser MOMENTUM 4 Wireless 293 grams, a difference of 39 grams. Clamp force, fit and padding still decide comfort.
Absolute weight difference = |254 - 293| grams. Manufacturer headset weights exclude cases and most accessories.
XM6 is about 13% lighter, while MOMENTUM 4 claims 60 hours against Sony at 30 with noise cancellation.
293 - 254 = 39 g. 39 / 293 × 100 = 13.3%. 60 / 30 = 2. Manufacturer test conditions are not identical.
Check your own setup
Start with the way you listen. USB charging is not the same as USB audio, and some headphones need power even with a cable. These choices are examples until you apply yours.
Bluetooth listening.
Bluetooth listening.
Battery figures are manufacturer claims for the stated mode, not measured travel time. Volume, codec, calls and battery age change runtime. Closed earcups can still leak sound. Weight alone does not predict comfort. USB audio needs a compatible source and cable. This check does not assess sound quality, microphone quality or amplifier power.

Sony, WH-1000XM6
A folding travel pair with a cable backup when the battery runs out. Choose it for a smaller packed shape than the XM5, not for a longer advertised battery life.

Sennheiser, MOMENTUM 4 Wireless
A strong fit when charging less often matters more than folding the headphones into a small shape. Its 60-hour ANC claim is paired with USB audio and a passive analog fallback.
Meaningful differences
| What changes | Sony WH-1000XM6 | Sennheiser MOMENTUM 4 Wireless | Why it matters |
|---|---|---|---|
| Headphone weight | 254 g | 293 g | Case, accessories and cables are not included. |
| Standard ANC battery claim | Up to 30 h | Up to 60 h | Volume, calls, codec and special modes can shorten runtime. |
| USB digital audio | No | Yes | A charging port alone does not establish audio support. |
| Battery-free analog playback | Yes | Yes | Passive listening does not provide powered noise cancellation. |
| Folds inward | Yes | No | Folding affects packing shape, not just headphone weight. |
| Two-device Bluetooth multipoint | Yes | Yes | Brand-specific automatic switching is a separate feature. |
What you give up
What matters in practice
XM6 folds inward and weighs 254 grams. MOMENTUM 4 weighs 293 grams and does not fold inward, so its long battery claim comes in a less compact design.
MOMENTUM 4 supports digital USB audio. The USB connection on XM6 is for charging, so a wired computer setup uses its analog input instead.
The claims are 30 and 60 hours with noise cancellation. Calls, codec choice, volume and other modes can shorten them, and they do not establish which cancels noise better.
What the facts say
Useful conclusions from the current headphones comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Sony WH-1000XM6 |
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| Sennheiser MOMENTUM 4 Wireless |
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