ANC is the main weakness. The open design limits sealing, so the effect is modest against chatter and steady noise and much less convincing against higher-frequency or sudden sounds, even if it appears somewhat improved over Buds 3.
Across reviews, ANC is consistently strong and competitive at the flagship tier, especially with a solid seal and the included foam tips. Several reviewers still place Bose or AirPods Pro 2 a step ahead for the most cocooned, best-in-class quiet. Noise canceling is highly tunable, with adaptive modes and manual strength steps/sliders available in the app and often from the case screen. Most reviewers found it easy to dial in more reduction or more awareness depending on environment.
Android compatibility is strong, and Galaxy phones get the most complete experience. Non-Samsung Android users still get meaningful control through Samsung's software, but the best extras remain Galaxy-first.
Android users get the most obvious upside through LDAC support and Fast Pair-style conveniences, and several reviews specifically cite Android phones during testing. Compatibility is generally smooth, and features feel most complete on Android.
Samsung's settings integration and Wearables app expose useful controls, EQ options, and ANC adjustments. The software feels feature-rich, though some advanced features stay exclusive to Galaxy phones.
The JBL Headphones app is viewed as central to the experience, enabling firmware updates, mode switching, and deeper personalization. Most find it well organized, though a minority report occasional crashes or flaky connections.
A/V sync is typically fine for video, but Bluetooth gaming latency can be noticeable for some reviewers. Using the case as a transmitter is repeatedly framed as the lower-latency workaround for flights, TVs, and certain gaming setups.
Bass is a standout strength, with reviewers repeatedly calling it punchy, warm, and satisfyingly deep for an open-fit earbud. It is not as textured as the Pro model, but it gives the Buds 4 a lively, full sound.
Bass is punchy and deep with strong slam, and many reviewers highlight it as a core strength. A few find the stock low end a bit thick for vocals or podcasts, but EQ presets make it easy to trim or boost.
Battery life is acceptable rather than exceptional at roughly 5 to 6 hours from the buds and up to 30 hours with the case. Reviewers treat endurance as serviceable, not a category advantage.
Battery life is consistently strong, commonly cited around 7-8 hours with ANC and up to about 11 hours without, with the case extending totals into the 32-44 hour range. Long-term impressions suggest only modest degradation after heavy use.
Connectivity looks strong overall, helped by Bluetooth 6.1 and solid range in real-world use. The bigger limitation is not dropouts but that the smartest switching behavior is mostly reserved for Samsung-centric setups.
Bluetooth performance is generally stable with fast pairing and modern conveniences like Fast Pair/Swift Pair depending on platform. A few long-term or multipoint users mention occasional reconnect hiccups, but dropouts are not a dominant complaint.
Build and finish are seen as more refined than the previous generation, with a more polished stem design and cleaner execution. The Buds 4 feel premium enough for the price, though not especially rugged.
Build quality is generally reported as solid and durable, with good materials feel and hardware that holds up over time. Cosmetic wear on the case (micro-scratches, fingerprints) shows up, but functional durability complaints are rare.
The case earns positive marks for its flatter layout, translucent lid, and practical physical pairing button. It feels useful and better thought out than a generic accessory shell.
The smart charging case is a defining feature, offering a touchscreen control center and useful shortcuts without pulling out a phone. The main downsides are physical size and occasional reports of UI lag or brightness quirks, but overall sentiment is strongly positive.
Charging is convenient and fast, with USB-C plus Qi wireless charging and a quick-charge feature that can deliver several hours from a short top-up. The case provides multiple full recharges, though heavy screen use can draw additional power.
Codec support is broad for the category, covering SBC/AAC plus hi-res LDAC and, in some coverage, LE Audio/LC3 in transmitter mode. This flexibility is frequently cited as a reason these feel future-proof.
Comfort is one of the Buds 4's biggest wins, especially for listeners who prefer open-fit earbuds or have smaller ears. The only caveat is that the looser fit can require occasional readjustment.
Comfort and fit are mixed and highly ear-dependent: many find them comfortable for long sessions, but multiple sources note the buds are physically large/deep and can be tricky for smaller ears. Tip choice (including foam) is often the difference between secure comfort and constant readjustment.
Design feedback is favorable overall: slimmer stems, a cleaner case, and a more polished look improve the presentation. The main knock is that the styling still feels very close to Apple's template.
Design is widely seen as premium and distinctive, with a stemmed look and modern finishes, but size is a consistent theme. Both the earbuds and especially the case are larger than many rivals, which can affect small-ear comfort and pocketability.
Using the case as a transmitter (USB-C or 3.5mm/aux via included cables) is repeatedly praised for flights, treadmills, TVs, and older sources. Reviewers treat it as more than a gimmick because it adds flexibility and can improve latency behavior.
The included tip selection is generous, usually featuring multiple silicone sizes plus foam, and reviewers frequently credit it for improving seal and ANC. Most see the variety as a practical advantage for dialing in fit.
EQ flexibility is unusually strong for mainstream earbuds, with both a multi-band equalizer and preset options available. This gives listeners real room to tailor the sound signature.
EQ and tuning tools are among the strongest in-class, with multiple presets plus advanced multi-band EQ and Personi-Fi hearing personalization. Reviewers frequently cite these controls as the key to tailoring bass, brightness, and overall balance.
Find My-style locating features are present through the app and case controls, and reviewers generally find them useful for locating earbuds. A few note limitations around locating or pinging the case itself compared with the earbuds.
The Buds 4 separate vocals, synths, percussion, and layered mixes well for the class. They are not hyper-analytical, but they rarely sound congested or smeared.
Instrument separation and imaging are repeatedly called out as clear and well-defined for true wireless earbuds. A few reviewers say it is not the most surgically accurate staging available, but it remains easy to place elements in the mix.
LDAC is widely appreciated by Android users for higher-quality wireless audio and is treated as a premium advantage. Tradeoffs show up in a few reviews: higher drain/latency and, in some implementations, disabling certain extra processing features.
Noise reduction during calls performs better than expected and can suppress loud background noise effectively. The tradeoff is that strong processing can make the speaker sound a bit digitized.
Noise reduction for calls, including background and wind suppression, is frequently praised and often highlighted as best-in-class or close. Edge cases include echo handling or very windy, chaotic environments where voices can wobble slightly.
Call quality is good in quiet spaces and usable in noisier ones, but it is not best-in-class. Voices remain understandable, though they can sound slightly muffled or processed compared with stronger premium rivals.
Call microphone quality is a consistent strength, with many reviewers describing clear, intelligible voice capture across calls and meetings. A few note mild Bluetooth artifacts or voice coloration depending on app and conditions.
Midrange tuning is clear and well judged, keeping vocals and core instruments present even with the Buds 4's fuller bass. This helps the earbuds sound richer than many entry-level competitors.
Midrange and vocal clarity are typically strong, though some note a mild V-shape or mid dip that can make certain instruments feel less forward. Personalization tools (EQ/Personi-Fi) are frequently recommended to bring mids up if desired.
Basic listening works across devices, but the overall experience is plainly Samsung-centric. iPhone users and people mixing Apple, Windows, and Galaxy hardware lose access to several of the best features.
Multi-platform support is strong across Android, iOS, and computers, helped by standard Bluetooth features and platform pairing options. The case transmitter further improves flexibility for devices without reliable Bluetooth audio.
Automatic switching is strongest inside the Galaxy ecosystem and notably less convenient elsewhere. Mixed-device users should expect more manual intervention than they would want at this price.
Multipoint and device switching are a major feature and usually work smoothly once set up. Some reviewers experienced occasional wrong-source switching or needed to toggle Bluetooth settings to recover, especially in multi-device workflows.
Passive isolation is weak because the open design does not create a proper seal. That physical limitation is a big reason the ANC never becomes truly class-competitive.
Portability is the recurring compromise: the case is often described as chunky or less pocketable than typical earbud cases. Many reviewers still accept the bulk because the screen and transmitter functions add real utility.
Wear detection and related sensors are usually reliable for auto pause/resume and convenience features. Some smart automation features (like auto talk/voice-aware behaviors) can be overly sensitive depending on the user and environment.
Setup and customization are straightforward on Galaxy phones and still manageable on other Android devices through Wearables. The biggest friction comes from Galaxy-only options rather than a confusing interface.
Sound quality is the clearest reason to buy the Buds 4. Across the reviews, the earbuds are praised for rich tuning, strong bass, clear vocals, and a presentation that beats many direct price rivals.
Sound quality is a standout: most reviews describe an energetic, polished tuning with plenty of detail and broad appeal from the hybrid drivers. The default voicing can lean bass-forward, but EQ, Studio-style presets, and Personi-Fi help balance it to taste.
For everyday earbuds, the Buds 4 sound fairly open and spacious, especially with higher-quality Galaxy playback modes enabled. They do not sound huge, but they avoid the boxed-in feel common at this tier.
Soundstage is commonly described as wider than expected for sealed in-ears, with good left-right spread. Spatial processing can make it feel larger still, though the perceived benefit varies by listener and content.
Spatial audio is present as a headline feature, but clear enthusiasm is limited. It adds another box to the feature list more than it defines the Buds 4 listening experience.
Spatial audio support is robust and often praised, especially with head tracking for movies and immersive listening. Opinion is mixed for music: some love the effect, while others find it changes timbre or feels inconsistent and prefer it off.
Fit stability is acceptable for regular daily use, but the open shape can shift enough to require adjustment. This is not the best pick for people who prioritize a locked-in feel.
Stability in motion is generally good for many users (running and gym use are commonly mentioned), especially with the right tips and seal. A smaller subset report dislodging or needing frequent fit corrections during activity.
Touch and stem-based controls are a strength. Reviewers repeatedly call them easy to locate, responsive, and customizable, with the flatter stem helping usability.
Touch controls are broadly functional and responsive, but multiple reviews criticize the control scheme tradeoffs and limited customization. A few users mention occasional mis-taps or delays, and some prefer using the case screen or app instead.
Transparency and TalkThru/Ambient modes are generally clear and usable for quick conversations, but a few note hiss or a slightly digital character. Multiple reviews say it is good rather than the very best, with AirPods Pro 2 often cited as more natural.
Treble comes through cleanly with good detail and vocal presence. Reviewers do not describe it as harsh or thin, which helps the Buds 4 avoid sounding brittle despite their lively tuning.
Treble is usually described as crisp and controlled, delivering detail without harshness for most listeners. Some report a touch of brightness or occasional coherence/timing quirks versus top audiophile picks, but EQ can tame sibilance if it appears.
USB-C is used for both charging and for the case’s wired-input transmitter feature, which many reviewers find genuinely practical. Cable-based connectivity is frequently highlighted as a differentiator versus most competitors.
Voice assistant support is solid on paper, with access to Bixby and Gemini plus Galaxy-focused conveniences. It adds real hands-free utility, even if reviewers do not treat it as the product's main selling point.
Volume output is described as having ample headroom and getting loud without obvious breakup for most listening. Some reviewers note it reaches satisfying levels well below max volume, and volume limiting options exist in software.
IP54 is enough for sweat and light splashes, making the Buds 4 workable for everyday workouts and commuting. Still, the rating is not especially rugged and is a downgrade from tougher earlier protection.
Earbuds carry an IP55-level water and dust resistance rating in most coverage, making them suitable for sweat and light rain. The case is typically not described as water resistant, so it benefits from more care.