Main trade-off
Marshall Monitor III A.N.C.
It has no stated water-resistance rating.
Head-to-head
Marshall Monitor III ANC vs Sennheiser MOMENTUM 4: Marshall folds, Momentum adds documented USB audio
The short answer
Choose Monitor III ANC for a lighter folding design and a longer battery claim. MOMENTUM 4 suits a setup that needs documented USB audio and analog backup.
Before you choose
The reasoning and the trade-offs
Plan charging around your listening day
At eight hours of listening per day, Marshall Monitor III A.N.C. claims the equivalent of 8.8 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 70 and 60 hours. This is a planning conversion of separate manufacturer maximums, not a measured endurance result.
Main trade-off
Sennheiser MOMENTUM 4 Wireless
The earcups turn flat but do not fold inward.
Marshall Monitor III A.N.C.
- Choose it for
- Pack a folding headphone for a long trip
- Prefer a lighter design
- Main trade-off
- It has no stated water-resistance rating.
Sennheiser MOMENTUM 4 Wireless
- Choose it for
- Use USB audio at a computer
- Need documented passive analog playback
- Main trade-off
- The earcups turn flat but do not fold inward.
About this comparison
Choose Monitor III ANC for a lighter folding design and a longer battery claim. MOMENTUM 4 suits a setup that needs documented USB audio and analog backup.
Marshall combines folding with long claimed endurance
Winner by situation
Start with what you need it to do
Pack a folding headphone for a long trip
Monitor III weighs 250 grams and claims 70 hours with ANC. MOMENTUM 4 weighs 293 grams, does not fold inward and claims 60 hours.
- Marshall Monitor III A.N.C.
- Better fit
- Sennheiser MOMENTUM 4 Wireless
- Depends
Use USB audio at a computer
It supports digital USB audio and passive analog listening. Do not assume the presence of a USB charging socket on another headphone establishes USB audio support.
- Marshall Monitor III A.N.C.
- Depends
- Sennheiser MOMENTUM 4 Wireless
- Better fit
Check the complete setup
Marshall 100-hour headline applies with ANC off. The 70-hour ANC figure is the relevant one alongside Sennheiser 60-hour ANC claim.
- Marshall Monitor III A.N.C.
- Depends
- Sennheiser MOMENTUM 4 Wireless
- Depends
Marshall combines 43 grams less weight with 10 more claimed ANC hours
Monitor III is about 15% lighter than MOMENTUM 4 and adds roughly 17% to the manufacturer ANC runtime claim.
- Marshall Monitor III A.N.C.
- Depends
- Sennheiser MOMENTUM 4 Wireless
- Depends
What matters in practice
The differences that matter
Plan charging around your listening day
At eight hours of listening per day, Marshall Monitor III A.N.C. claims the equivalent of 8.8 days and Sennheiser MOMENTUM 4 Wireless 7.5 days in standard ANC mode. Leave headroom for real use.
How we reached this conclusion
Claimed ANC runtime / 8 hours per day. Inputs 70 and 60 hours. This is a planning conversion of separate manufacturer maximums, not a measured endurance result.
Compare what sits on your head
Marshall Monitor III A.N.C. weighs 250 grams and Sennheiser MOMENTUM 4 Wireless 293 grams, a difference of 43 grams. Clamp force, fit and padding still decide comfort.
How we reached this conclusion
Absolute weight difference = |250 - 293| grams. Manufacturer headset weights exclude cases and most accessories.
Marshall combines 43 grams less weight with 10 more claimed ANC hours
Monitor III is about 15% lighter than MOMENTUM 4 and adds roughly 17% to the manufacturer ANC runtime claim.
How we reached this conclusion
293 - 250 = 43 g. 43 / 293 × 100 = 14.7%. (70 / 60 - 1) × 100 = 16.7%. These are published figures, not a matched test.
Check your own setup
Which headphones work with the way you listen?
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.
Marshall Monitor III A.N.C.
Meets these checksBluetooth listening.
Sennheiser MOMENTUM 4 Wireless
Meets these checksBluetooth 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.
Choice A
Marshall, Monitor III A.N.C.
Monitor III A.N.C.
A folding over-ear pair with a 70-hour ANC-on claim and a 250 g body. It fits long trips when you would rather charge less often.
- Best matched use
- Long travel days with ANC and fewer charging stops
Checked facts
- Marshall rates playback at 70 hours with ANC and 100 hours without.
- The listed weight is 250 g.
- The over-ear design folds and supports Bluetooth multipoint.
Choice B
Sennheiser, MOMENTUM 4 Wireless
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.
- Best matched use
- Long stretches between charges with flexible wired listening
Checked facts
- Rated up to 60 hours over Bluetooth with ANC, tested with an iPhone at mid volume.
- Approximate weight is 293 g.
- Supports USB audio and a detachable 2.5-to-3.5 mm analog cable.
- Supports SBC, AAC, aptX and aptX Adaptive.
Meaningful differences
What changes the fit
| What changes | Marshall Monitor III A.N.C. | Sennheiser MOMENTUM 4 Wireless | Why it matters |
|---|---|---|---|
| Headphone weight | 250 g | 293 g | Case, accessories and cables are not included. |
| Standard ANC battery claim | Up to 70 h | Up to 60 h | Volume, calls, codec and special modes can shorten runtime. |
| USB digital audio | Not established | Yes | A charging port alone does not establish audio support. |
| Battery-free analog playback | Not established | 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
Every choice has a cost
If you choose Marshall Monitor III A.N.C.
- The wired connection uses the supplied USB-C-to-3.5 mm lead, so keep the correct cable.
If you choose Sennheiser MOMENTUM 4 Wireless
- At 293 g, it is 66 g heavier than Accentum Plus.
What matters in practice
How to make the call
Marshall combines folding with long claimed endurance
Monitor III weighs 250 grams and claims 70 hours with ANC. MOMENTUM 4 weighs 293 grams, does not fold inward and claims 60 hours.
Sennheiser has a clearly documented wired fallback
It supports digital USB audio and passive analog listening. Do not assume the presence of a USB charging socket on another headphone establishes USB audio support.
Keep the comparison in noise-cancelling mode
Marshall 100-hour headline applies with ANC off. The 70-hour ANC figure is the relevant one alongside Sennheiser 60-hour ANC claim.
What this comparison cannot tell you
- These conclusions use published specifications and the stated calculations. They are not a hands-on performance test.
What the facts say
What the comparison shows
Useful conclusions from the current headphones comparison, followed by the checked facts used to reach them.
Compared set
All 60 models remain in view on this guide. The answer comes from the facts and trade-offs shown on the page.
60 matching models from 60 checkedSee the checked facts and calculation notes
Match countNo matcher need is preselected here. Open the matcher to add the needs that apply to your home, room or setup.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Marshall Monitor III A.N.C. | No positive match recorded for these needs |
|
|
| Sennheiser MOMENTUM 4 Wireless | No positive match recorded for these needs |
|
|
Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
Marshall Monitor III A.N.C.
Pack a folding headphone for a long trip
See price & reviews on AmazonSennheiser MOMENTUM 4 Wireless
Use USB audio at a computer
See price & reviews on AmazonLinks open in a new tab.