Sennheiser MOMENTUM 4 Wireless: problems, parts and running costs

Checked: 2026-10-05

Summary

The recurring problems sit around the sound rather than in it: noise cancellation is roughly 5 dB behind the Sony WH-1000XM5 and weakest on low rumbles, microphone noise rejection is mediocre, and the Smart Control app repeatedly failed to recognise paired headphones for two outlets. There are no filters or subscription, so the only eventual running costs are the ear pads and the built-in battery, and neither is priced or documented as user-replaceable. It is a strong buy for sound quality and battery life in quiet settings at or below about $200, and harder to justify near its $349.95 US launch price because the ANC trails current-generation rivals.

Common problems and fixes

ANC trails the Sony and Bose competition — every lab review puts it behind the Sony WH-1000XM5 and the Bose line; SoundGuys puts the Sony gap at about 5 dB more noise reduction, and RTINGS notes it struggles specifically with low rumbles. There is no fix; choose a rival if commute-grade cancellation is the priority. [4][5][7]
Microphone noise rejection is a known weakness — SoundGuys names it as the main weakness in its verdict, and RTINGS calls the microphone system passable but mediocre at handling noise. The mics are fine for clear speech in quiet rooms. [4][7]
The Smart Control app fails to recognise paired headphones — PCMag reproduced the failure even after installing all available firmware, and the Tom’s Guide reviewer was often unable to reach the app’s controls at all. Basic playback works without the app, so treat the app as optional. [5][6]
The in-app EQ is coarse — PCMag found the three-band EQ needlessly simplified with no gesture-customisation section, though SoundGuys measured the out-of-box tuning very close to target, so most listeners will not need EQ. [4][5]
The auto on and off feature misfires — the SoundGuys reviewer had it shut the headphones off regardless of whether they were being worn and disabled it. Turning it off is the fix. [4]
Largely plastic build with no IP rating, and it does not fold — SoundGuys scored durability 6.9/10, no water or dust rating is published, and the earcups only swivel flat into the case rather than folding. Treat it as desk and commute use, not a ruggedised travel pair. [4]
The sound profile shifts with fit — RTINGS reports the profile changes depending on how the headphones sit on your head; this is normal for the class but worth knowing before judging them from a short demo. [7]
No exact-model owner-forum durability record — no dedicated owner thread was found, so long-term ear-pad wear, hinge cracks and battery degradation after two to three years are undocumented. [4][7]

Parts and consumables

Ear pads and headband pad — faux leather over memory foam, praised for comfort with glasses, but not documented as user-replaceable in the manual package list. No replacement price was found in the sources. [2][5]
Internal 700 mAh battery — built-in lithium-ion, and not documented as user-replaceable; no replacement price was found, though Sennheiser sells refurbished units directly. [1][2][12]
USB-A to USB-C cable and 2.5 mm-to-3.5 mm analog cable — the two wired paths, both included at roughly 1.2 m; replacements are not priced in the sources. [2][5]
Carry case — included, with a rigid shell, mesh pocket and elastic loops; not a priced consumable. [2][4]
No filters or subscription — the only genuine consumables are the pads and, eventually, the battery; there is no filter to replace and no app subscription. [1][2]

Yearly running cost

Not enough data to compute a yearly figure. There is no filter or subscription, and the only eventual consumables are the ear pads, the headband pad and the internal battery, none of which has a published replacement price or a documented replacement interval. Charging a 700 mAh cell costs little and no source quantifies it, so a replacement battery or fresh pads are an occasional cost that cannot be planned numerically from these inputs. [1][2]

When it is a good buy

No non-Amazon street price was read for this pass, so thresholds use the documented MSRP points rather than a live store price. Sennheiser set a launch RRP of £299.99 / €349.90 in August 2022, and the 2023 Copper and Denim colorways carried a $399.95 MSRP when announced in August 2023; Sennheiser also sells refurbished units directly. [8][9][12]

At or below about $200: strong on measured evidence, because reviewers rank its sound and 60-hour battery above the Sony WH-1000XM5 while its ANC trails it. [4][5]
Around the $349.95 US launch price: the trade is sound quality, aptX Adaptive, USB-C wired audio and long battery against weaker ANC and a coarser app EQ. [5][7]
At the $399.95 colorway MSRP: the ANC gap against current-generation rivals is the weak point to weigh. [4][9]

Named alternatives: the Sony WH-1000XM5 is the better choice when commute-grade noise cancellation and microphone noise rejection come first, since it gives roughly 5 dB more reduction; the Bose QuietComfort 45 is the better choice when you want the deepest cancellation, because PCMag found neither the MOMENTUM 4 nor the Sony reached its ANC level; and the cheaper Sennheiser ACCENTUM Plus is the better choice if you want a finer EQ at a lower tier. [4][5]