Compare SonoFlow SE HQ31 Wireless Headphones vs Sennheiser MOMENTUM 4 Wireless Headphones

ANC is a real strength for the price. Most reviewers said it handles low-frequency noise very well and beats expectations for a budget model, even if it does not match Bose or Sony flagships. Mode control is flexible. Reviews repeatedly mention easy switching between ANC, transparency, and normal modes through the app or hardware button.

ANC effectiveness is mixed across sources: some call it very good and close to leaders, while others measure it as clearly behind top Bose and Sony options, especially for tougher noise scenarios. ANC adjustability is widely praised thanks to sliders, adaptive behavior, and app-driven profiles and zones that let you tune isolation versus awareness.

Android support looks strong. Reviewers specifically cited the Android app experience and LDAC activation on Android devices as working as expected.

The app is feature-rich but divisive. Several reviewers liked the EQ, firmware, and mode controls, while others complained about crashes, lag, ads, and rough translation.

The Smart Control app is widely viewed as feature-rich with EQ and zone-based behavior, but some reviewers dislike setup friction, pop-ups, or account requirements for certain features.

aptX support is a notable plus cited by several reviews, helping Android users with more consistent performance compared to AAC in many setups.

Low-latency performance is generally solid. Reviewers who tested gaming or video playback reported little to no obvious lag, though one review found the mode made little audible difference.

Audio-video sync is generally reported as strong for video watching, with latency management helped by codec selection in some advice-focused reviews.

Bass is usually described as punchy, warm, and enjoyable. It has enough emphasis for pop, hip-hop, and EDM, but it can also sound a bit overboosted depending on tuning and preset.

Bass is commonly described as elevated and impactful without constant bleed, but several reviewers note it can be a bit much stock and may benefit from EQ to reduce boom or flab in some tracks.

Battery life is one of the biggest reasons to buy these headphones. Nearly every review praised the 60 to 90 hour endurance as exceptional for the class.

Battery life is the most consistent standout: multiple sources cite roughly 50 to 60 hours or more with ANC depending on test methods and usage.

Bluetooth performance is consistently reliable. Reviews noted fast pairing, stable connections, and good range with few complaints about dropouts.

Bluetooth stability is generally solid with modern connectivity, though real-world reliability can still depend on device ecosystem and nearby previously paired devices.

Build quality lands above average for the price but not premium. Most reviewers found the plastic shell solid enough, while a few called the frame or hinges wobbly or plainly budget-grade.

Build quality is typically seen as solid but more plastic-heavy and less premium-feeling than metal-rich rivals; durability is considered fine with reasonable care.

Hi-res playback support is a plus here. LDAC and high-res audio claims were repeatedly highlighted, though reviewers focused more on wireless playback than any dedicated DAC behavior.

Physical controls work, but they are not especially intuitive. The biggest complaint is the reversed track-skip behavior on the volume rocker, even though button feel itself is usually decent.

The single physical power and pairing control is sometimes criticized as finicky or confusing compared to simpler button-driven systems.

The included cable is a weak point. Reviews that mentioned it called the USB cable very short and more utilitarian than convenient.

One review criticizes the included analog cable as thin and less confidence-inspiring for travel wear and tear.

Accessory protection is minimal. Multiple reviews specifically noted that no carrying case or pouch is included.

The carry case is usually praised as protective with storage for cables, but a few reviews call it larger than ideal for pack-light travel.

Charging performance is very good. USB-C, fast-charge support, and short top-ups that return hours of listening time were all praised.

Charging is generally strong, with quick-charge claims and reasonable full-charge times; experiences vary slightly by power source and usage.

Clamp force is one of the main comfort complaints. Some users liked the secure fit, but several found the pressure too tight for longer sessions.

Clamp force is often described as moderate and comfortable, but the lighter clamp can trade off with stability during movement-heavy activities.

Codec support is excellent for the price. LDAC is widely mentioned, and one review also listed SBC and AAC alongside it.

Codec support is strong for mainstream and Android use, including multiple aptX options and AAC, but it is not positioned around newer lossless Bluetooth standards.

Long-session comfort is mixed. Some reviewers wore them for hours without issue, while others reported fatigue from clamp, heat buildup, or overall heft.

Comfort is frequently described as excellent, including long sessions and glasses-friendly padding, though a few users report headband pressure or fit quirks during extreme-length wear.

The design is simple and modern but not especially luxurious. Color options and clean styling help, though several reviews still described the look as plainly budget-oriented.

Design is commonly described as minimalist and understated; some like the clean look while others miss the more distinctive style of earlier Momentum models.

Wired use adds some flexibility, but convenience is limited. Reviews mention USB-C wired mode rather than a normal 3.5mm setup, and the cable situation is not ideal.

Padding quality is mostly a plus. Reviewers frequently described the ear pads as soft and pleasant, even when other fit-related comfort issues remained.

Earpads are commonly described as soft and comfortable, contributing to long-wear comfort; the softer seal may slightly reduce isolation for some.

The earcups rotate or lie flat, which helps both neck comfort and storage. Reviewers who mentioned it saw this as a useful portability feature.

Earcup rotation is praised in at least one review as smooth and helpful for fit, with cups lying flat for storage and neck rest.

EQ control is a strong feature. The app offers multiple presets and, in several reviews, a custom EQ that makes it easier to tune the sound to taste.

EQ customization is a meaningful strength across reviews, commonly used to tame bass, refine mids, or personalize the overall signature without major distortion issues.

Find My style tracking is described as lacking compared to Apple ecosystem features in at least one review.

Frequency balance is not especially accurate. Reviewers often heard boosted bass, dipped mids, or sharp or rolled-off treble, although a few still found the overall tuning enjoyable.

Measurements and listening impressions generally align on a well-tuned response for broad appeal, with small deviations (notably bass lift) that can be refined via EQ.

Headband adjustment appears adequate. Reviews that mentioned sizing said the extenders allow a workable fit for larger heads.

Fit and adjustability are generally straightforward, though users are advised not to over-tighten because pressure points can develop.

Hinge confidence is limited. The only detailed hinge-related comment described the cups and hinge area as too wobbly.

The box contents are basic. Most reviews mention only the headphones, a short USB cable, and documentation, with no premium extras.

Accessories are generally generous, commonly including a case, charging cable, analog cable, and an airplane adapter, though one review notes a missing adapter compared to the prior generation.

Instrument separation is decent rather than standout. One detailed review noted that the headphones can organize detail well enough to keep recordings coherent and not overly congested.

Instrument separation and imaging are commonly rated as strong for the category, with clear placement and good stereo definition, though not always a large leap over prior models.

The built-in mic is usable and often better than expected for the price. Call performance ranges from merely okay in quieter spaces to impressively clear in stronger reviews.

LDAC support is one of the model’s biggest spec advantages. It is repeatedly cited as a rare feature at this price.

LDAC is not supported and is repeatedly mentioned as the key wireless hi-res omission for enthusiasts.

Maximum loudness is not a strength. The few reviews that addressed it described limited headroom or some distortion concerns rather than effortless clarity at high volume.

Even when pushed loud, multiple reviews note the sound stays clean, but the practical ceiling can feel lower than expected compared to peers.

Noise reduction for calls is mixed but often effective. Some reviewers praised the dual-mic ENC for cutting traffic and wind, while others said voices could still sound distant in noise.

Noise rejection for calls is a frequent criticism, with several reviews noting background sounds can intrude; wind reduction features can help in some cases.

Call quality is better than expected overall. The strongest reviews praised clear, loud voice pickup, but a few others found performance only acceptable in quiet environments.

Call quality trends average-to-good in quiet rooms, but multiple tests report reduced clarity and competitiveness when background noise is present.

Midrange clarity is uneven. Vocals can sound forward and engaging, yet several reviewers also heard recessed or coarse mids depending on tuning and preset.

Midrange is generally clear, but some reviews call it less rich than Momentum 3 or slightly recessed depending on tuning, with vocals still remaining clean and present for most listeners.

Cross-platform use appears strong. One review specifically praised smooth switching between iOS, macOS, and Android devices.

Multipoint works well when used. Reviewers who tested dual-device pairing generally described switching as fast and seamless.

Multipoint is supported and often convenient, but at least one lab test reports occasional glitches when other known devices are nearby, even though switching can be quick once connected.

Passive isolation is respectable but not perfect. The seal is good enough for everyday use, though fit and cup size can limit isolation for some listeners.

Passive isolation is a recurring weak point in several lab-style reviews, sometimes attributed to a softer seal; others find it adequate in real travel use.

Portability is a plus. Several reviews highlighted folding or flat-laying earcups that make the headphones easier to carry around.

Portability is good but not best-in-class: cups lie flat and cases can be compact versus some rivals, yet the design does not fully fold into the headband in some reports.

The preset EQs are mostly useful. Reviewers liked having many options, though some felt only a subset of the presets were genuinely worthwhile.

Preset modes and guided personalization features are generally useful and can improve tonality for specific tastes, though some presets may limit manual slider control.

Sensor extras are very limited. One review explicitly noted the lack of wear detection or similar smart convenience features.

Wear sensors and auto pause features are frequently mentioned as useful quality-of-life additions, though auto power behaviors can be inconsistent for some users.

Sidetone is praised in at least one review for making calls feel more natural by letting you hear your own voice more clearly.

The matte finish appears to resist fingerprints well. Smudge resistance was only mentioned once, but it was a positive note.

Surface smudging is mentioned as manageable: oils can show with regular handling but a quick wipe restores a clean look.

Setup and software experience depend heavily on the reviewer. Some found pairing and app navigation easy, while others ran into buggy behavior and needed restarts.

Setup and daily control are generally easy once configured, but a few reviewers report initial friction in the app experience or connection steps.

Overall sound quality is good for the money, not for purists. Most reviewers found the tuning enjoyable and competitive at the price, but several also wanted more refinement and realism.

Sound quality is a consistent highlight: most reviews describe an engaging, detailed presentation that competes strongly at the price, often with a fun, slightly bass-forward tilt and strong clarity after light EQ if desired. Wired audio can sound tighter and more stable than Bluetooth in some reports, but at least one review warns wired listening can degrade significantly if the headphones are not powered on.

Soundstage is better than expected for a cheap ANC headphone, especially with spatial audio on. Still, some reviewers found it only average or even narrow.

Soundstage is usually described as wide enough for an immersive feel, but depth can be limited and some tests describe the stage as more inside-the-cups than truly expansive.

Spatial audio is a pleasant bonus rather than a headline feature. Most reviews found it adds width or fullness, but it is not treated as a true premium immersive implementation.

Spatial audio support is not a core strength in these reviews, with some calling it limited or weaker than ecosystem-driven alternatives.

Fit stability is acceptable but not perfect. A secure clamp helps for normal use, though one review noted slipping during gym bench work.

Fit stability can be a weakness during vigorous movement due to moderate clamping, with at least one test noting issues beyond walking.

Sustainability gets a small nod through minimalist, paper-forward packaging in at least one review, though it is not a dominant theme.

Touch controls are often described as intuitive and capable, but several reviews mention sensitivity, accidental triggers, or occasional glitches requiring app toggles.

Transparency mode is a standout feature. Many reviewers said it sounds unusually natural and useful for conversations, outdoor awareness, and quick check-ins with the environment.

Transparency is adjustable and generally usable, but opinions vary: some like the control and naturalness, while others find it less crisp or overly amplified in busy spaces.

Treble performance is mixed. Some reviews heard decent clarity, while others called the top end rolled off, sharp, or less refined than competitors.

Treble is frequently praised for detail and shimmer, though a few reviewers mention occasional brightness, fatigue, or a sharper peak that may bother treble-sensitive listeners.

USB-C support is a clear convenience win. It is consistently mentioned for charging, and several reviews also tie it to wired operation.

USB-C is a key advantage: reviews highlight charging convenience and USB-C audio as a rare, practical feature for wired listening.

Voice assistant support is solid where tested. Siri and Google Assistant were reported to respond accurately through the hardware controls.

Volume output is merely adequate. Reviews that mentioned loudness either wanted more headroom or said the headphones can get reasonably loud, but it is not a standout strength.

Volume output is sometimes reported as lower than competing flagships, leading some users to run near the top of the volume range.

Water resistance is effectively absent in practice: at least one review notes no IP rating and recommends avoiding rain.

Weight comfort is mixed. Some reviewers found them light enough for long wear, while others noticed the mass quickly and preferred lighter alternatives.

Weight is typically reported around the 290g range and perceived as manageable, though not the lightest in class and still a factor for ultra-long sessions for some users.