OnePlus Buds 4 VS Soundpeats Air 5 Pro Plus

Both the OnePlus Buds 4 and the Soundpeats Air 5 Pro Plus share a nearly identical physical profile: true wireless, in-ear fit, no neckband, no wingtips, no RGB lighting, and stereo playback. For most buyers, the day-to-day wearing experience will feel comparable on paper.

The one concrete differentiator in this group is the ingress protection rating. The OnePlus Buds 4 carry an IP55 rating, while the Soundpeats carry IPX5. Both are rated against water jets at the same pressure level (the ″5″ water digit), so sweat and rain resistance is equivalent. However, the OnePlus Buds 4's additional ″5″ dust rating means they are also certified against limited dust ingress — the Soundpeats' ″X″ indicates dust resistance was simply not tested or rated. In practice, this matters most for dusty environments like construction sites, dry outdoor trails, or sandy beaches.

Overall, design is essentially a tie for typical use cases. If you regularly use earbuds in dusty conditions, the OnePlus Buds 4 hold a marginal but real edge due to their full IP55 certification versus the unrated dust protection of the Soundpeats Air 5 Pro Plus.

On the noise isolation front, both earbuds are evenly matched — each offers active noise cancellation alongside passive noise reduction, so neither has a structural advantage in blocking out the world around you. The driver size difference (11 mm on the OnePlus Buds 4 vs. 10 mm on the Soundpeats) is marginal; a 1 mm gap rarely translates into a perceptible difference in loudness or bass authority in real-world listening.

The frequency range tells a more nuanced story. Both top out at 40,000 Hz, reaching well into the high-resolution audio territory that benefits hi-res streaming formats. However, the OnePlus Buds 4 extend down to 15 Hz versus the Soundpeats' 20 Hz floor. In practice, the human ear typically perceives bass starting around 20 Hz, so those extra 5 Hz are felt more than heard — think sub-bass rumble in action films or deep electronic music. It is a subtle but real advantage for bass-sensitive listeners.

The decisive differentiator here is spatial audio support, which the OnePlus Buds 4 offer and the Soundpeats Air 5 Pro Plus do not. Spatial audio creates a wider, more three-dimensional soundstage — particularly noticeable when watching video content or gaming. Combined with the slightly lower bass extension, the OnePlus Buds 4 hold a clear edge in sound quality for users who prioritize immersive listening experiences.

Battery life is where the gap between these two earbuds becomes impossible to ignore. The OnePlus Buds 4 deliver 11 hours of playback per charge compared to just 6 hours on the Soundpeats Air 5 Pro Plus — nearly double the endurance per session. That difference is significant for long-haul travelers, commuters, or anyone who forgets to top up their case regularly.

The disparity carries through to ANC usage and total case capacity as well. With ANC enabled, the OnePlus Buds 4 still manage 6 hours versus the Soundpeats' 3.5 hours — meaning even under the heavier power drain of active noise cancellation, the OnePlus matches what the Soundpeats can do in their best-case scenario. Combined with the case, the OnePlus Buds 4 offer 34 hours of total battery versus 24 hours for the Soundpeats, a meaningful difference if you rely on the case to recharge on the go. The OnePlus also charges slightly faster at 1.33 hours versus 1.5 hours, a minor but welcome bonus.

The verdict in this category is clear: the OnePlus Buds 4 win decisively on power. Across every battery metric — per-earbud runtime, ANC endurance, total case capacity, and charge speed — they outperform the Soundpeats Air 5 Pro Plus by a consistent and practically meaningful margin.

Sharing the same Bluetooth 5.4 foundation, identical 10-meter range, and USB-C charging, these two earbuds start from equal footing. The meaningful divergence lies in their codec and feature choices. The Soundpeats Air 5 Pro Plus supports LDAC and aptX Lossless — two high-resolution wireless codecs with broad ecosystem support, particularly on Android devices — while the OnePlus Buds 4 instead offer LDHC, a high-res codec that is less universally supported across devices and platforms. For listeners who stream hi-res audio and own LDAC-compatible phones, the Soundpeats hold a tangible advantage in audio fidelity transmission.

The OnePlus Buds 4 strike back in two practical areas. Their audio latency clocks in at 47 ms versus 60 ms on the Soundpeats — a difference that is noticeable when watching video or gaming, where tighter lip sync and snappier audio feedback matter. The OnePlus also supports fast pairing, streamlining the initial connection experience, while the Soundpeats require a more manual pairing process. On the other side, the Soundpeats' support for Bluetooth LE Audio is forward-looking, enabling more efficient audio transmission and compatibility with next-generation Bluetooth audio ecosystems.

This category has no single winner — it comes down to priorities. The Soundpeats Air 5 Pro Plus is the stronger pick for audiophiles who want LDAC or aptX Lossless codec support. The OnePlus Buds 4 are the better fit for users who prioritize lower latency and seamless fast pairing in everyday use.

Much of the feature set here is shared ground: both earbuds offer ambient sound mode, fast charging, dual-device multipoint connection, mute, voice prompts, on-device controls, and even a travel bag included in the box. For the majority of daily use cases, these shared capabilities put them on equal footing.

Where the OnePlus Buds 4 pull ahead is in three distinct extras. In/on-ear detection automatically pauses playback when an earbud is removed — a small but genuinely convenient quality-of-life feature the Soundpeats lack. The find device feature adds peace of mind for users prone to misplacing their buds. Most notably, the OnePlus Buds 4 include a built-in translator, which enables real-time language translation directly through the earbuds — a compelling differentiator for frequent travelers or multilingual users that the Soundpeats Air 5 Pro Plus simply does not offer.

The OnePlus Buds 4 win this category on feature depth. While neither product lacks the essentials, the combination of ear detection, device finding, and a built-in translator gives the OnePlus a meaningfully richer utility package — and those additions address real, everyday friction points rather than being spec-sheet novelties.

Both the OnePlus Buds 4 and the Soundpeats Air 5 Pro Plus are equipped with a noise-canceling microphone, meaning calls and voice input are filtered to reduce background noise in both cases. This is now a standard expectation for earbuds in this segment, and neither product falls short of it.

With only a single shared data point available for this group, there is no differentiator to analyze. The microphone category is a complete tie — neither earbud holds any advantage over the other based on the provided specifications.