Compare Technics EAH-AZ100 Earbuds vs Samsung Galaxy Buds 4 Pro

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 is usually rated as strong and clearly improved, but not universally best-in-class; it excels more with steady noise than sudden sounds and remains behind the very top Bose, Sony, or Apple options for some listeners.

These earbuds pair especially well with Samsung and Android devices, and many reviewers frame that ecosystem fit as one of the product's biggest selling points.

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

The Galaxy Wearable experience is feature-rich and useful, but several reviews note that the best tools remain most valuable on Samsung devices.

Several reviews explicitly note aptX codecs are not supported.

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

One review notes that enabling the highest-quality Samsung audio mode can hurt lip-sync performance, making video playback less precise than standard settings.

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 widely described as deep, punchy, and well-controlled, but a minority of reviewers thought the low end could overpower some tracks without EQ tweaks.

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 serviceable rather than standout. Most reviews land around six hours per charge and see that as fine for everyday use, but short versus the longest-lasting rivals.

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

Bluetooth stability is generally solid, with good range and few disconnect complaints, though one review did note occasional dropouts.

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

The redesigned case earns mostly positive marks for pocketability, easier docking, and the translucent lid, though a few reviewers found it blockier or more scratch-prone than ideal.

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

Charging convenience is strong thanks to USB-C and wireless charging support, and reviewers generally liked the case's day-to-day practicality.

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 strong for Samsung owners thanks to SSC and UHQ options, but the experience is less compelling outside the Galaxy ecosystem where higher-end features are restricted.

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

Long-session comfort is a major positive. Many reviewers wore the earbuds for hours on flights, work sessions, or daily use without significant fatigue.

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

Samsung's new look is broadly seen as more polished and premium, with the flatter metallic stem and refined case helping the Buds 4 Pro feel more distinct and mature.

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

Samsung includes multiple tip sizes, but fit outcomes still vary widely; some reviewers got a strong seal quickly while others could not find a great match.

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

EQ customization is a clear strength, with reviewers frequently praising the custom bands and the ability to tune the sound away from the stock profile.

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

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

Instrument separation is frequently cited as a standout, with cleaner layering and better distinction between elements than earlier Galaxy Buds generations.

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

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

Background-noise suppression during calls performs very well in most reviews, especially against wind, traffic, and loud ambient noise, even if the processed voice can sound a bit artificial.

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

Call quality is good overall, with clear enough voice pickup for everyday use, but several reviewers heard some digitizing, fuzziness, or mild warble in tougher conditions.

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

Midrange performance is a strength, with vocals and core instruments coming through clearly and without being swallowed by the boosted low end.

Outside the Samsung ecosystem, the Buds 4 Pro lose meaningful convenience and some premium features, so cross-platform users get a less complete product.

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

Multipoint and device switching are a weak spot. Galaxy-to-Galaxy switching is convenient, but true cross-platform multipoint is missing or awkward.

Passive isolation depends heavily on fit: reviewers with a strong seal found it effective, while others said the tips failed to seal well enough for class-leading isolation.

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

Preset EQ options are generally well received, especially the Dynamic-style tuning, though they are not a full substitute for manual tweaking if you dislike the default balance.

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 not difficult, but one review noted a small learning curve because some controls moved from the old app-centered flow into Samsung's system settings.

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 the review set, the Buds 4 Pro are consistently praised for rich, detailed, energetic sound, though a few reviewers found the tuning a bit bass-forward or Samsung-dependent at the top end.

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

When reviewers commented on staging, they found the presentation surprisingly open and spacious for true wireless earbuds, especially with Samsung's higher-quality audio modes.

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

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

Fit security is good for many listeners, but not universal. Several reviewers found the buds locked in well, while others reported slipping during movement or difficulty maintaining a seal.

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

Pinch and swipe controls are usually considered responsive and easier to use than last generation, though a few people still found the gesture scheme awkward at first.

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 or ambient mode is one of the most consistently praised features, sounding natural and useful for conversations, announcements, and day-to-day awareness.

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

Treble is generally clear and lively with good sparkle, though a few reviews mention occasional high-frequency leak-through in ANC mode or a slightly uneven top-end balance.

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

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

The IP57 rating is repeatedly highlighted as a useful advantage for sweaty workouts, rain, and general durability, even though the buds are not meant for swimming.