Compare Technics EAH-AZ100 Earbuds vs Sennheiser Momentum True Wireless 4 Earbuds

ANC is widely rated top-tier for everyday noise and transit rumble, but several reviews stop short of calling it the absolute best in the category. Noise control is highly adjustable, with adaptive ANC plus granular sliders that let you tune intensity and reduce pressure effects.

ANC performance is widely considered good to very good, especially for steady low-frequency noise (commutes, travel). Multiple sources still rank Sony or Bose as stronger overall, with some higher-frequency or sudden sounds bleeding through. Reviews highlight flexible ANC control via the app, including adaptive behavior and anti-wind options. The tradeoff is that some modes can reduce cancellation strength compared with a full-max setting.

Android compatibility is frequently highlighted as the best match for this product, since Android devices can access more codecs and future-facing features. Most reports describe stable performance on Android, with fewer issues than on iOS in some tests.

The Technics Audio Connect app is feature-rich (ANC, EQ, multipoint, spatial settings), but some reviews call the interface clunky or menu-heavy.

The Smart Control app is widely praised for depth and polish, offering fit tests, customization, updates, and sound tools. The main critique is that it can feel feature-dense or that certain controls (like EQ depth) could be more advanced.

Several reviews explicitly note aptX codecs are not supported.

aptX support (including Adaptive/Lossless on compatible devices) is frequently praised as a differentiator for Android users. Several reviewers also note that audible gains can be subtle versus AAC, and depend heavily on phone support and content quality.

Where tested, audio-video sync is reported as excellent with minimal to no noticeable lag.

For video and casual gaming, sync and latency are generally reported as good, aided by low-latency modes and modern Bluetooth. Competitive gaming may still benefit from dedicated dongle-based solutions, but most users should find A/V sync acceptable.

Bass is repeatedly called deep and unusually controlled for true wireless, though one review found it can feel heavy or change with ANC settings.

Bass is repeatedly described as deep, punchy, and well controlled, adding weight without drowning details. Some listeners feel the stock bass tilt is more consumer-friendly than neutral, and prefer trimming it via EQ.

Battery life is commonly reported around 10 hours with ANC on (AAC) plus substantial case recharges, with lower figures when using high-res modes.

Battery life is typically around 7 to 7.5 hours per charge in many tests, with ANC reducing runtime in some reports. With the case, total endurance is commonly cited around 30 hours, which is competitive for the premium class.

Bluetooth stability is generally reported as reliable with few dropouts across devices and environments.

Bluetooth stability is generally strong, with several reviewers noting fewer dropouts and good on-the-go continuity. A few reports mention iPhone-related cutouts or codec-dependent behavior (e.g., stereo-to-mono at distance with high-res modes).

Build quality is commonly described as solid and durable, with premium materials and a robust case. Overall impressions point to a flagship-level fit and finish.

The case is generally pocketable and premium-feeling, but some reviews mention weak magnets, slight rattle, or scratch/scuff issues.

Case quality is consistently rated premium, with a fabric exterior and solid feel. The main knock is size rather than materials or durability.

Charging is praised for USB-C plus Qi wireless and quick-charge support; full recharge times are typically a few hours.

Charging is a strong point: USB-C and Qi wireless charging are standard, and fast top-ups are commonly quoted around 8 to 10 minutes for about an hour of playback. Battery-protection and intelligent charging modes trade speed and max capacity for longevity.

Codec support is strong (SBC/AAC plus LDAC and LC3/LE Audio features noted), appealing to both iOS users and Android audiophiles.

Codec support is a major selling point, repeatedly cited as future-proof: Bluetooth 5.4 with broad codec options, plus LE Audio/LC3 and Auracast support via updates depending on source device. iPhone users are largely limited to AAC, reducing the practical benefit.

Comfort is widely rated high thanks to a smaller/lighter fit, though some users may still experience fatigue or fit variability over long sessions.

Comfort is commonly rated high for a premium TWS, with stable in-ear fit for long listening. The buds are physically large, and some users with small ears or very long sessions report fatigue or pressure over time.

Design is viewed as premium and more compact than the prior model, though not everyone finds it the sleekest-looking option.

Design is repeatedly described as premium and stylish, with new colorways and a recognizable Momentum look. Many reviews note the external design is very similar to the prior generation, so upgrades are mostly internal.

Multiple ear tip sizes are commonly included, helping most users achieve a seal, though tip choice remains key to fit.

Multiple ear tip sizes and fin options are a recurring positive, supporting both comfort and isolation. Some reviewers still struggle to get a consistent seal due to tip shape or softness, so fit can be somewhat ear-dependent.

EQ customization is a strength, often cited as an 8-band EQ plus presets that can significantly change the sound.

EQ tools are considered effective for shaping the sound, and many reviewers recommend using them to tailor bass or clarity. A few power users want a more advanced EQ than the built-in 5-band option and report limitations or compression when pushing bands.

Find My/location features are present, but feedback varies; some appreciate the feature, while others complain the locating beep or accuracy is limited.

Find-my style tracking and precision locating are not emphasized, and multiple reviewers note it is not on the same level as Apple ecosystem tracking. If you often misplace earbuds, this is a weaker point versus AirPods.

Measured/tonal accuracy is broadly good, but several reviewers note a mild upper-mid/high underemphasis that can read as less crisp detail out of the box. Personalization tools and EQ can compensate, and many still find the tuning musically pleasing.

Included accessories are typically appreciated, especially the multiple ear tip sizes and stabilizing fins plus USB-C cable. This variety helps users find a better seal and fit.

Instrument separation is frequently praised on busy tracks, helping the AZ100 stay clean and layered.

Instrument separation and imaging are strong, with reviewers frequently noting easy placement of instruments and clean layering. This is a recurring reason these are favored for immersive music listening.

LDAC support is frequently highlighted for higher-quality Android streaming, with the usual battery-life tradeoff.

At higher listening levels, clarity is usually maintained, and multiple sources note low distortion or clean playback. The main caveat is that pushing volume higher to overcome outside noise is not ideal for hearing health.

Voice noise reduction is often effective at cutting wind and background noise, though aggressive processing can create artifacts.

Noise reduction for calls is inconsistent across reviews. Wind remains the most common weakness, and some tests report background noise suppression that is less reliable than top competitors.

Call quality is mixed: many find it usable or improved, while others report robotic processing or, in one case, serious call glitches.

Call mic quality is mixed: many find it fine in quiet to moderate settings, and some report clear voice pickup. Others rate it below class leaders, especially outdoors, with processing artifacts or inconsistent clarity in noisy streets.

Midrange is generally clear and natural for vocals, with occasional notes that bass-heavy mixes can push voices slightly back.

Midrange is generally praised for natural vocals and good presence, often cited as a key strength. A few reviewers note an upper-mid dip or a darker voicing out of the box that can reduce perceived clarity until adjusted.

Multi-platform use is generally good across phones and computers, but the experience is not equal across ecosystems. iPhone works reliably for basics, yet the most compelling codec and feature benefits largely land on compatible Android devices.

Three-device multipoint is a major differentiator and is often described as seamless; occasional switching lag is mentioned but not common.

Multipoint is supported and usually works as expected for switching between two devices. Some reviewers note occasional quirks or platform-specific issues, but overall reliability is viewed as solid after firmware updates.

Passive isolation is strong when the seal is right, helped by multiple ear tip sizes and stabilizing fins. A few users report seal sensitivity depending on ear shape and tip stiffness, which can impact both sound and ANC.

Portability is good in-pocket for the earbuds themselves, but the fabric case is frequently described as chunky. Several reviewers accept the size as a premium tradeoff, while others prefer smaller cases for everyday carry.

Preset EQ options are generally useful, though some (like extra-bassy modes) may be too much for neutral listeners.

Sound Personalization and presets are often highlighted as genuinely useful, helping users correct tonal preferences and automate settings via Sound Zones. Results depend on user patience and ear fit, but most find the feature worthwhile.

Sensors such as in-ear detection are generally reported as accurate and convenient, reliably pausing and resuming playback. This contributes to the overall flagship feel and day-to-day ease of use.

Case finish durability is mixed, with some noting scratches/scuffs and others calling it relatively scratch-resistant.

Setup is mostly straightforward, but the lack of a case pairing button and some app UX quirks can add friction.

Setup is usually straightforward, and firmware updates address some early quirks; most reviewers describe smooth pairing and daily use. A minority report pairing oddities, platform glitches, or UI annoyances that prevent a flawless experience.

Reviews consistently praise the AZ100 for highly detailed, spacious sound with strong dynamics; a few note the default tuning can be bass-forward or benefit from EQ.

Across reviews, sound quality is a standout: rich, detailed, and engaging with a spacious presentation. A minority find the stock tuning a bit warm/dark or slightly lacking upper-mid or top-end bite, but EQ and Sound Personalization can dial in clarity.

Soundstage is a standout: multiple outlets describe an immersive, wide presentation that feels larger than typical earbuds.

Soundstage is consistently reported as wide and immersive for true wireless, with a strong sense of space. Some describe it as more expansive than key rivals, while others call it excellent but not the most out-of-head possible.

Dolby spatial audio/head tracking is supported and can add immersion, but some reviewers find it subtle or prefer it off for music.

Spatial audio features are not a focus here, and multiple sources note the lack of built-in spatial audio/head tracking compared with some rivals. For listeners who prioritize immersive spatial modes, this can be a deciding drawback.

Fit stability varies: many report a secure hold, while some reviewers experienced looseness or buds falling out during vigorous movement.

Stability is generally strong, with fins helping keep the earbuds secure during movement and even light workouts. A small subset report fit/seal challenges that can make them feel less locked-in.

Touch controls are responsive and highly configurable, with the main complaint being occasional over-sensitivity.

Touch controls are generally described as responsive and customizable, with quick mode switching. Some users simply dislike touch input or note occasional mis-triggers in wet conditions, but responsiveness itself is usually strong.

Transparency/ambient mode is strong and adjustable, but some reviewers note hiss at higher levels, an unnatural voice-focused mode, or not enough outside sound for awareness.

Transparency is often described as natural and adjustable, with some calling it among the best they have used. A minority report slight hiss/white noise or say it could be more lifelike compared with Apple or Bose in certain environments.

Treble is described as airy and detailed without harshness, but a few critics wanted more sparkle or presence.

Treble is typically smooth, airy, and non-fatiguing, with sparkle that avoids harshness. The main criticism is that the highest frequencies can feel slightly tamed or recessed for listeners who want extra bite and air.

USB-C charging is consistently supported and frequently mentioned as a modern convenience.

USB-C charging is standard and frequently mentioned, though some note the case port placement is unconventional. In practice, wired charging is easy, and most emphasis is on the convenience of pairing USB-C with Qi wireless charging.

Volume output is generally adequate, but at least one test found the earbuds on the quieter side, sometimes needing near-max volume for certain tracks. Most listening impressions still describe the presentation as full and satisfying at normal levels.

The earbuds are commonly cited as IPX4-rated for sweat and light rain, but not for heavy water exposure.

The IP54 rating is frequently mentioned as a meaningful upgrade, making them suitable for workouts, rain, and dust exposure. They are not designed for submersion, so they remain a splash and sweat solution rather than a swim option.

Weight is noticeable for some: a few reviews describe them as heavy or fatiguing after hours, while others find the distribution and fins keep them comfortable. Comfort varies significantly by ear shape and tip choice.