Compare Sony WF-C510 Earbuds vs Technics EAH-AZ100 Earbuds

Across reviews, the WF-C510 does not include active noise cancellation. Reviewers generally treat this as expected at the price and lean on fit-based isolation and ambient mode instead.

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.

The Sony companion app is generally viewed as helpful for EQ, ambient controls, multipoint management, and feature toggles; a few reviewers find parts of the interface or specific tools confusing or limited.

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

Reviews that discuss codecs indicate there is no aptX support, reinforcing that these buds prioritize simple compatibility over advanced codec features.

Several reviews explicitly note aptX codecs are not supported.

Where discussed, reviewers report good lip-sync for videos and casual gaming, with no dedicated gaming mode but acceptable performance for non-competitive use.

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

Bass is described as present and clean, but not the deepest or most powerful by default. Many reviewers recommend EQ tweaks for more punch; a few still consider it insufficient for bass-heavy preferences.

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

Per-charge endurance is a standout: many reviewers cite roughly 10 to 11 hours from the earbuds, while the case typically adds about one additional charge. Enabling ambient/transparency or enhancement features can reduce runtime.

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

Bluetooth stability is mostly reported as dependable, with occasional notes of minor jitters in challenging areas but generally quick reconnection and predictable pairing behavior.

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

Build quality is often described as budget-plastic. Earbuds are usually seen as fine for the price, while the case and hinges draw the most complaints about cheap feel or durability impressions.

Physical button controls are polarizing. Some reviewers like the tactile reliability and customization, while others dislike multi-press complexity, volume-control ergonomics, or the way pressing can push the buds deeper.

The case is widely considered compact and pocketable, but multiple reviewers note it feels cheap and offers limited extra battery (often one additional full charge).

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

Charging is generally described as straightforward via the case, with fast-charge claims mentioned and mixed notes on case recharge speed depending on reviewer expectations.

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

Codec support is consistently described as limited to SBC and AAC, positioning the WF-C510 as a straightforward streaming-focused option rather than a hi-res Bluetooth pick.

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

Comfort is a frequent strength: many reviewers cite an ultra-light feel and all-day wearability, though a minority report fit instability during movement depending on ear shape and tip choice.

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

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

Reviews commonly note three ear tip sizes in the box, supporting fit adjustments for different ears.

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

EQ customization is consistently highlighted as a value-add, including manual adjustment and Sony-guided personalization tools. Some reviews call the EQ limited in precision, while others find it effective for tuning bass or clarity.

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

Some reviews highlight location and recovery-style features via platform pairing tools (for example, last-known location and bud chimes through connected-device ecosystems), though this is not emphasized by all sources.

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

Most reviews mention multiple tip sizes included; several explicitly note no USB-C cable in the box, framing it as a typical cost-cutting choice.

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

Multiple reviews explicitly note the absence of LDAC, with some pointing to pricier Sony models for hi-res codec needs.

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

At higher volumes, clarity is generally maintained without obvious distortion, but some reviewers report bass thinning or reduced impact as volume rises.

Background noise suppression on calls is frequently criticized, with multiple reviewers noting poor performance in busy offices, streets, or windy conditions, while a few report it holding up reasonably in moderate noise.

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

Call microphone quality is mixed: acceptable or clear in quieter situations for some reviewers, but several report thinness, artifacts, or inconsistent intelligibility when background noise increases.

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

Midrange clarity is often praised, with vocals and instruments described as crisp and well-presented for everyday listening, podcasts, and video content.

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

Multipoint connectivity is widely praised as reliable and convenient, often highlighted as a standout value feature for quickly switching between two devices.

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

Passive isolation is repeatedly praised as impressive for a non-ANC model, with multiple reviewers describing a strong seal that blocks a meaningful amount of outside noise.

Preset EQ options are seen as useful but not uniformly loved: some reviewers appreciate the variety, while others describe presets as bland or not very distinct.

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

Several reviews note the lack of wear-detection sensors, meaning audio does not automatically pause when you remove the buds.

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

Setup and day-to-day usability are mostly simple, but recurring friction points include control-mapping constraints, occasional app quirks, and volume-control workflows that some reviewers find unintuitive.

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

Sound quality is typically rated as very good for the price, with frequent mentions of clean clarity and an enjoyable, balanced-to-bright presentation. Bass impact is considered adequate for most, but bass-focused listeners may want more.

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.

Soundstage impressions are generally positive for the class, with some reviewers noting a wider or more open feel especially when using spatial features, though it is not consistently described as audiophile-level expansive.

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

Spatial audio/360 Reality Audio support is a notable bonus for the price. Reviewer reactions vary: some find it immersive for certain content, while others consider it gimmicky or unnatural for music.

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

Stability is often described as strong, with several reviewers comfortable using the buds for workouts or commuting; at least one reviewer experienced buds loosening or falling out, suggesting fit is user-dependent.

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

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

Transparency/ambient mode is usually described as usable and fairly natural for situational awareness, though strength varies by reviewer and may be limited for full conversations in louder settings.

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.

Treble is commonly characterized as clear and sometimes forward or bright, with some reviewers noting a bit of crunch or reduced sparkle depending on track and settings.

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

USB-C charging is repeatedly confirmed. Wireless charging is commonly noted as missing.

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

Overall loudness is usually described as sufficient, though a few reviewers note a low default volume behavior or a need to raise app-level volume settings, especially in noisy environments.

Water resistance is consistently listed as IPX4, generally positioned as enough for sweat and light rain but not for submersion.

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

Weight is repeatedly called out as a key advantage, with multiple reviews emphasizing how light the buds feel in-ear and how that supports long sessions.