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

Auracast support is a concern in one scored review because the reviewer criticizes its absence.

Auracast is viewed as meaningful future-proofing, even if its current usefulness depends on wider adoption.

Multi-platform compatibility is praised because the app and customization work across iOS and Android.

Multi-platform compatibility is mixed: Android gets the best feature support, while iPhone use loses codecs and showed some issues.

Sound leakage is a weakness in the one scored review, which says loud music can be heard in a quiet room.

Sound leakage is praised in one long-term review because the seal produced no leakage.

Volume output is praised as top-tier and very loud in the reviews that discuss it.

Volume output is a minor weakness in one test, where the earbuds needed near-max volume for some tracks.

Weight comfort is praised because the earbuds feel better distributed, light, and easier to forget during use.

Weight comfort is mixed: some find the weight distributed well, while others feel heaviness after long sessions.

Microphone noise reduction is polarized: several reviewers praise wind and background suppression, while one reports failed clarity and cutouts.

Microphone noise reduction is the weakest recurring area, especially in wind, subway, and noisy street conditions.

Stability is mixed: several reviewers found the fit secure, while others would not trust it for vigorous movement.

Physical stability is strong for many reviewers, with multiple reports that the buds stay put during movement or flights.

Portability is strong because the case is repeatedly described as pocketable, small, and easy to carry.

Portability is limited mostly by the chunky case, even when reviewers still like the case quality.

Spatial audio is mixed: reviewers appreciate Dolby/head-tracking support, but several find it merely decent, distracting, or less clear than stereo.

Spatial audio is a limitation: reviewers note it is missing, though one reviewer personally did not mind the omission.

Case quality is mixed: it is compact and pocketable, but multiple reviewers criticize weak magnets, rattle, scratches, or bland styling.

The fabric-wrapped case is widely liked for feel and build, despite repeated complaints that it is bulky.

Preset EQ quality is mostly positive, especially Direct, Dynamic, and Treble+ modes, though SuperBass+ is too heavy for one reviewer.

Preset EQ quality is mixed; one reviewer preferred sound personalization over simple presets because presets reduced clarity.

aptX support is a weakness because one reviewer specifically wished Qualcomm aptX codecs were included.

aptX support is valued for Android users, but one reviewer found the aptX lineup confusing and hard to distinguish in practice.

Setup and software simplicity are mostly positive, but the lack of a physical pairing button adds friction for one reviewer.

Setup is usually described as simple and hassle-free, helped by the app and quick Bluetooth pairing.

Water and sweat resistance is adequate for workouts or rain, but one reviewer cautions against heavier rain exposure.

Water/sweat resistance is treated as useful and adequate for workouts, rain, sweat, and light moisture.

Transparency mode is mixed: some find it natural or useful, while others hear hiss, over-processing, or weaker situational awareness.

Transparency mode is often praised as natural and lifelike, but a few reviewers mention hiss or that AirPods/Bose still perform better.

Frequency response impressions are mixed: one review calls it strange, while others praise accuracy, balance, and low distortion.

Frequency response measurements are acceptable but not perfect, with one review pointing to a clarity-related upper-range issue.

Hi-res playback is praised in the one scored review, where LDAC/FLAC listening brought more detail, solidity, and space.

Hi-res capability is discussed through lossless/high-resolution Bluetooth playback rather than a separate DAC, with enthusiasm tempered by device requirements.

Bluetooth reliability is consistently praised, with reviewers reporting stable connections and no meaningful dropouts.

Bluetooth and wireless connectivity receive strong praise from most reviewers, with a few caveats around iPhone issues or high-codec stability.

Battery life is consistently a strength, with reviewers praising long ANC runtime and major improvement over the AZ80.

Battery life is generally competitive and often praised, but some reviewers note it is not class-leading or may be short for some listeners.

The app is mostly praised for useful controls, customization, stability, and EQ access, despite some complaints about layout.

The Smart Control app is widely praised for useful features, fit tests, EQ, battery options, and customization, though one review found it somewhat overwhelming.

Codec support is praised for LDAC/LC3 breadth, but the absence of aptX is called a mild limitation.

Codec support is treated as a premium strength, especially on Android, though benefits depend on compatible devices and settings.

Passive isolation is viewed positively when the tips seal well, with reviewers noting isolation even before ANC is active.

Passive isolation is praised when the fit is right, with reviewers noting strong physical blocking and seal benefits.

Multipoint is a major strength, with reviewers repeatedly praising reliable switching and three-device connectivity.

Multipoint works well for some reviewers and makes device switching convenient, though one review only found it OK in limited testing.

Eartip fit is generally good with the right size, but some reviewers report looseness, bulk, or falling out.

Fit evidence is mixed: many reviewers get a secure seal, while small ears or thin tips caused problems for others.

Soundstage depth is usually strong, with reviewers praising depth, immersion, and layering, though one long-term reviewer wanted more depth.

Soundstage depth/imaging is repeatedly praised for precision, holography, and immersive placement.

Call quality is mixed, ranging from serviceable or excellent in some reviews to choppy, robotic, or poor in others.

Call microphone quality is mixed: quiet-room calls can be clear, but noisy or windy conditions reduce reliability.

Midrange and vocals are generally described as clear, detailed, warm, and more forward than the previous model.

Midrange is usually praised for clarity, vocals, realism, and texture, though one review found upper mids lacking.

Ear tip options are considered useful and generous, especially for finding the right fit across ear sizes.

Ear-tip and fin options are praised because they help users find a better seal.

Build quality is praised as premium, tactile, mature, and a substantial step forward.

Build quality is consistently considered premium, durable, and well finished.

Android compatibility is praised for LDAC, fast pairing, and strong ANC value with Android phones.

Android compatibility is praised where Snapdragon/lossless support and Android EQ options matter, with no Android issues in one test.

Value is mixed-to-positive: reviewers like the premium feature set and sound, but several note the high price and strong competition.

Value is mixed but favorable: reviewers often justify the premium price through sound and features, while others expected more upgrades for the money.

EQ customization is a clear strength, with many reviewers praising the eight-band control and meaningful tuning options.

EQ and sound personalization are considered useful and often effective, but one reviewer found the built-in five-band EQ limiting.

Reviewers overwhelmingly praise the AZ100's sound as clear, detailed, musical, and high-end, though one review found the stock tuning odd.

Sound quality is the strongest consensus area, with most reviewers calling the Momentum True Wireless 4 excellent or among the best-sounding earbuds.

Soundstage width receives strong praise, with reviewers describing the presentation as spacious, broad, expansive, and room-like.

Soundstage width is frequently praised as wide, spacious, expansive, or more open than competitors.

ANC is broadly strong and often near flagship level, though several reviewers say it still falls short of the very best Bose-style silence.

Reviewers generally find ANC good to very good, strong for commute noise, though several say Sony or Bose can still block more.

Touch controls are generally responsive and customizable, though sensitivity and personal preference create some mixed reactions.

Touch controls are mostly praised as responsive and customizable, but one reviewer found accidental triggers very annoying.

Video sync is mostly strong, with two reviewers reporting zero or no visible lag, while one notes a slight delay with some codecs.

Latency is usually acceptable for video, calls, and casual gaming, though one review warns competitive shooters may still be less ideal.

Bass is widely praised for depth, control, punch, and low distortion, with only one review criticizing the default balance as too boomy.

Bass is a major strength: reviewers describe it as deep, controlled, punchy, warm, and rarely overpowering.

Charging is viewed positively where evaluated, especially wireless charging and case convenience.

Charging is praised for wireless charging, fast top-ups, and battery-protection options.

Comfort trends positive thanks to smaller, lighter ergonomics, but fit fatigue and bulk remain concerns for some ears.

Comfort is mostly positive for long sessions, but some reviewers found size, wings, or weight limiting after hours.

Treble is usually considered clear, airy, detailed, and non-harsh, though one review says the default tuning lacks high-end content.

Treble is usually praised as crisp, refined, and non-harsh, though some reviewers found the default highs too restrained.

Independent left/right earbud use is praised as convenient and useful when scored.

One reviewer values the ability to use either earbud solo without issue.

Instrument separation is a standout strength, with reviewers hearing layers, voices, and complex arrangements as distinct and clearly placed.

Instrument separation and imaging are repeatedly praised as clean, precise, and unusually spacious for true wireless earbuds.

Design and aesthetics are generally praised as premium, sleek, compact, or classy, though a few reviewers find the look plain.

Design is seen as stylish and premium, although several reviewers note it changes little from the previous generation.

Maximum-volume clarity is praised for staying clean and distortion-free even at high levels.

Maximum volume clarity receives strong praise in one review for remaining distortion-free at max volume.

Control remapping is praised as unusually flexible and useful across the app and earbuds.

Find My support is useful for peace of mind, though one reviewer is disappointed by the location behavior.

Included accessories draw criticism where reviewed because foam tips are missing despite multiple silicone tip sizes.

Integrated microphones are good enough for calls in favorable conditions, with stronger praise from some reviewers than others.

LDAC is received positively for higher-quality playback and better sound from compatible Android or hi-res sources.

Lossless support is a major selling point for compatible Android/Snapdragon users, though some reviewers found the audible gains slight.

In-ear detection is praised as highly accurate in one comparative test.

USB-C is present, but the only opinionated evidence is mild criticism of the front-facing port placement.

Voice assistant integration is limited in coverage but works reliably where tested or described.