JBL Tune Beam 2 VS OnePlus Buds 4

Both the JBL Tune Beam 2 and the OnePlus Buds 4 share the same fundamental design philosophy: true wireless, in-ear earbuds with stereo playback and no frills like RGB lighting, wingtips, or displays. For most users, this common ground means a similar out-of-box experience in terms of form factor and everyday usability.

The meaningful differences lie in two areas: protection and weight. On ingress protection, the OnePlus Buds 4 holds a IP55 rating versus the JBL's IP54, and that single digit jump in the second number is not trivial — it means the OnePlus can resist low-pressure water jets from any direction, while the JBL is only rated against water splashes. In practical terms, the JBL is labeled ″sweat resistant,″ making it adequate for workouts, but the OnePlus edges into ″water resistant″ territory, offering more confidence in light rain or high-sweat conditions. On weight, the OnePlus Buds 4 is marginally lighter at 9.46 g per earbud versus 10.4 g for the JBL — a roughly 10% difference that can matter during extended wear, reducing ear fatigue over long listening sessions.

In the Design category, the OnePlus Buds 4 holds a clear edge: it offers superior water protection and a lighter build, both of which have tangible real-world benefits. The JBL Tune Beam 2 is not far behind and remains a solid design, but on these specific metrics it concedes ground to the OnePlus.

At the foundation, both earbuds share a strong common baseline: active and passive noise cancellation, spatial audio support, and dynamic drivers. The real story, however, is how far apart they sit on the technical specifications that shape actual sound performance.

The OnePlus Buds 4 carries a notably wider frequency range — 15 Hz to 40,000 Hz compared to the JBL Tune Beam 2's 20 Hz to 20,000 Hz. The lower floor of 15 Hz means the OnePlus reaches deeper into sub-bass territory, which can translate to a more visceral, physical feel on bass-heavy tracks. The upper ceiling of 40 kHz extends well beyond the limit of human hearing (roughly 20 kHz), but it becomes relevant when playing hi-res audio formats that benefit from a wider transient response. The OnePlus also uses a slightly larger 11 mm driver versus the JBL's 10 mm, which generally allows for greater air movement and can contribute to a fuller low-end presentation. Its sensitivity advantage — 96.5 dB/mW vs. 95 dB/mW — is marginal in isolation, but it means the OnePlus can reach the same perceived volume at slightly lower power draw.

Across every measurable sound quality spec provided, the OnePlus Buds 4 holds a consistent edge: broader frequency response, a larger driver, and higher sensitivity. These advantages are individually modest but collectively point to a tuning profile designed to resolve more detail and deliver more dynamic range, making the OnePlus the stronger performer on paper in this category.

On raw endurance, the JBL Tune Beam 2 leads across the board — 12 hours of playback per charge versus 11 hours for the OnePlus Buds 4, and a total case-backed runtime of 36 hours compared to 34 hours. These gaps are modest in isolation, but the ANC picture tells a more significant story: with noise cancellation active, the JBL holds at 10 hours while the OnePlus drops sharply to just 6 hours. For users who rely on ANC throughout a workday, that difference — nearly two-thirds more runtime — is practically meaningful and not something to dismiss.

Where the OnePlus Buds 4 recovers ground is charge speed. It refills in approximately 80 minutes against the JBL's 2 hours, a 40% faster turnaround that matters when you need a quick top-up between uses. Neither earbud offers wireless charging, so both are locked to cable-based case charging, leveling that aspect of the experience.

Weighing endurance against convenience, the JBL Tune Beam 2 holds the edge in this category — its substantially longer ANC runtime makes it the more reliable choice for heavy, all-day listeners. The OnePlus charges faster, which is a genuine advantage, but for most use cases the ability to run ANC for a full workday without reaching for the case is the more impactful differentiator.

The connectivity foundation is largely shared: both earbuds use USB-C charging, support fast pairing, match each other at a 10 m Bluetooth range, and neither offers NFC pairing or Auracast broadcast audio. The more telling differences sit in Bluetooth version and codec support.

The OnePlus Buds 4 runs on Bluetooth 5.4 versus the JBL Tune Beam 2's 5.3 — a generational step that brings incremental improvements in connection efficiency and reliability, though real-world differences between these two versions are subtle for most users. More practically significant is codec support: the OnePlus carries both LDHC and AAC, while the JBL supports neither. LDHC is a high-res wireless codec capable of transmitting audio at up to 900 kbps, making it relevant for users streaming hi-res content on compatible sources. AAC, meanwhile, is the standard codec for Apple devices, meaning iPhone users connecting to the JBL will fall back to SBC — a noticeably lower-quality baseline — whereas the OnePlus handles AAC natively for a cleaner Apple ecosystem experience.

The OnePlus Buds 4 wins this category clearly. Its newer Bluetooth version is a minor bonus, but the dual codec advantage — covering both the premium LDHC tier and the practically essential AAC — gives it meaningfully broader compatibility and higher audio transmission quality across a wider range of source devices.

Feature parity is the dominant story here. Both earbuds deliver ambient sound mode, fast charging, 2-device multipoint connectivity, on-device touch controls, voice prompts, mute functionality, headset capability, and even a travel bag in the box. For the vast majority of everyday use cases, users of either product will find an essentially identical feature toolkit.

The sole differentiator in this category is in/on-ear detection, which the OnePlus Buds 4 supports and the JBL Tune Beam 2 does not. This sensor automatically pauses playback when an earbud is removed from the ear and resumes when reinserted — a small but genuinely useful quality-of-life feature that reduces the need to manually pause and play during brief interruptions like conversations.

Given how closely matched these two are, the OnePlus Buds 4 holds a narrow edge in this category purely on the strength of in-ear detection. It is a single addition, but it is a practical one that improves the daily flow of use in a way most listeners will notice and appreciate.

The microphone specifications for these two earbuds are identical across every available data point: both deploy 6 microphones and both include noise-canceling microphone technology. A 6-mic array is a competitive count at this tier, typically enabling beamforming configurations that isolate the speaker's voice while suppressing ambient noise from multiple directions — useful for calls in busy environments.

Based strictly on the provided specs, this category is a complete tie. Neither the JBL Tune Beam 2 nor the OnePlus Buds 4 holds any measurable advantage over the other in microphone hardware, and call quality performance cannot be differentiated from these figures alone.