Compare Soundcore by Anker Space A40 Earbuds vs Technics EAH-AZ100 Earbuds

Reviewers generally found ANC strong for the price, especially against low, steady noise, though several noted weaker performance against voices, high frequencies, or premium ANC 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.

Android users were singled out for benefiting from LDAC and broad device compatibility, while iOS remained limited to other codecs.

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

The Soundcore app was widely praised for useful controls, customization, EQ, and feature access, with only minor complexity or multi-device app caveats.

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

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

Video sync and gaming latency were mostly reported as solid, with several reviewers finding minimal or no noticeable delay.

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

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

Bass was usually described as punchy, steady, or adequate, but some reviewers wanted deeper sub-bass or found the default tuning too bass-heavy.

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

Battery life was one of the strongest areas, with most reviewers reporting long sessions and strong case endurance despite LDAC or ANC reducing runtime.

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

Bluetooth performance was mostly stable and quick, but one reviewer had frustrating re-pairing issues and another noted manual disconnect hassles.

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

Build impressions were generally positive for the buds and case materials, though SoundGuys criticized the case hinge security.

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

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

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

Case feedback was split: many liked the compact, premium-feeling case and charging support, while others criticized hinge/lid security or closure.

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

Charging was praised for wireless charging, USB-C, quick-charge usefulness, and a strong charging case, with few complaints beyond battery mode tradeoffs.

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

Codec support was viewed positively because LDAC joins AAC and SBC, though aptX was only factually absent and not scored.

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

Long-use comfort was a consistent strength, with most reviewers finding the buds light and wearable for hours, though a few reported pressure or fit-dependent comfort limits.

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

Design was consistently described as sleek, compact, premium-looking, or stylish for the price.

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

Fit was usually secure with a good seal, though reviewers emphasized tip choice and one found the stock XL tips inadequate.

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

The included tip selection was usually praised for offering many sizes, but one reviewer with large ear canals found even the largest tips too small.

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

EQ customization was a standout strength thanks to many presets, custom EQ, HearID, and frequent praise for tuning flexibility.

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

Find My support was treated as a useful bonus, though the evidence centered on beeping-style device finding rather than GPS tracking.

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

Frequency response was viewed as enjoyable and often balanced for the price, but not fully neutral or accurate enough for critical listening.

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

The only direct hinge evidence was negative, with SoundGuys saying the case hinge was not tight enough.

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

Instrument separation was praised in multiple reviews, with instruments and mix elements described as clear, well placed, or easier to distinguish.

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

Integrated microphones were generally considered useful and capable, especially for calls or ANC, though mic quality varied in separate call-quality scoring.

Independent left/right bud use was praised as seamless, with no connection break reported.

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

LDAC was repeatedly treated as a meaningful advantage for Android or hi-res Bluetooth listening, though it reduced battery life in some testing.

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

The one direct maximum-volume clarity test was positive, noting no distortion in the lows at top volume.

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

Microphone noise reduction was mixed: some reviewers praised voice isolation in noise, while others found ambient handling weak or inconsistent.

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

Call microphone quality was the clearest weakness, ranging from loud and clear to thin, muffled, serviceable, or poor depending on reviewer and environment.

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

Midrange comments were mostly positive for vocals and clarity, though a few reviewers found mids veiled, dull, or slightly lacking.

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

Cross-device compatibility was positive, with reviewers using phones, laptops, tablets, iOS, and Android without major platform-specific barriers.

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

Multipoint reliability was a major strength, with reviewers repeatedly describing device switching as seamless, reliable, or essential.

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

Passive isolation was considered good when fit was right and helped ANC performance, though it remained dependent on a proper seal.

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

Portability was a consistent strength, especially the small case and compact buds that fit pockets easily.

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

Preset EQ quality was useful but mixed: some presets worked well, while bass-boost style presets were criticized for limited or muddy results.

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

Sensors were a repeated weakness because multiple reviewers missed wear detection or auto-pause.

The only smudge-resistance evidence was positive, noting the case finish should resist visible fingerprints.

Setup and software simplicity were generally praised, with reviewers calling the app simple, the guide sufficient, or setup easy.

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

Sound leakage evidence was limited but positive, with one reviewer saying the buds kept sounds private.

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

Overall sound quality drew strong praise across the review set for clarity, balance, detail, and value, with only critical-listening caveats.

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

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

Soundstage width was usually praised as wide, spacious, or well-imaged, though one reviewer found the stage narrow.

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

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

Stability was generally strong for walking, workouts, and daily use, but one reviewer warned against serious running or sprinting.

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

Touch controls were mixed: several reviewers found them responsive and customizable, while others reported delays, missed gestures, or sensitivity issues.

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

Transparency mode was mixed, from very good vocal/ambient awareness to bright, tinny, hissy, or limited adjustability.

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

Treble was often clear and detailed, but some reviewers noted sibilance, thin cymbals, reduced sparkle, or upper-register sharpness.

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

USB-C was positively tied to easy recharging in the one directly opinionated USB-C quote.

Value was the strongest consensus point, with nearly every reviewer framing the Space A40 as a standout bargain for features and performance.

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

Voice assistant support was split, with one reviewer reporting poor Google/Siri behavior while another found the microphones sensitive enough for requests.

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

Volume output was considered more than loud enough by reviewers who discussed it, including one who said loud-listeners would be satisfied.

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

Water and sweat resistance was viewed as useful for rain, sweat, and workouts, but IPX4 was also described as limited or not especially rugged.

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

Weight comfort was strongly positive, with reviewers repeatedly noting light buds that disappear or avoid fatigue.

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