Flagship true wireless earbuds usually arrive on stage alongside a flashy smartphone keynote, but OnePlus just pulled a surprise weekend move. Without a single teaser trailer, the company quietly published the official global product page for the OnePlus Buds Pro 4, laying out every acoustic, battery, and artificial intelligence upgrade ahead of its formal retail rollout.
Co-engineered once again with Danish acoustic specialists Dynaudio, the new flagship earbuds pair an upgraded dual-driver, dual-DAC architecture with twice the active noise cancellation strength of their predecessor and a massive fifty-three-hour total battery ceiling. Here is a complete technical breakdown of the newly revealed specifications, AI features, and how they stack up against the competition.
Most compact wireless earbuds force a single dynamic driver to handle both deep sub-bass rumbles and delicate high-frequency cymbal shimmer, which inevitably muddies the midrange. OnePlus solves this physical limitation by equipping each earbud with a coaxial dual-driver setup featuring an 11mm composite dynamic woofer and a 6mm planar tweeter.
Even more importantly, each driver runs on its own independent Digital-to-Analog Converter (DAC), eliminating crossover distortion between the low and high frequencies. Tuned in partnership with Dynaudio, the revamped acoustic chamber delivers 50% stronger bass output than the previous generation while stretching the frequency response from 10 Hz all the way up to 40,000 Hz.
For audiophiles who usually reach for full-sized over-ear cans like those in our Sony WH-1000XM6 wireless headphones review, the Buds Pro 4 support Hi-Res Audio over the LHDC 5.0 codec, streaming 24-bit/192kHz studio masters at bitrates up to 1Mbps. You also get personalized Golden Sound ear-canal mapping and Spatial Audio with dynamic head tracking.
Commuting through noisy traffic in Kolkata or sitting beside a roaring aircraft engine demands serious acoustic isolation. OnePlus upgrades the noise-canceling hardware with Pro Adaptive Noise Cancellation, which monitors ambient sound and ear-canal leakage in real time to deliver twice the noise reduction performance of the Buds Pro 3.
Instead of forcing you to toggle manually between low, medium, and high ANC modes inside the HeyMelody app, the adaptive algorithm shifts attenuation strength automatically as you walk from a quiet office into a crowded metro station. When you need to take a client call on the street, each stem combines three directional microphones with a bone-conduction Voice Pick-Up (VPU) sensor that reads jawbone vibrations to isolate your voice from howling wind.
Beyond raw acoustics, the biggest generational leap on the Buds Pro 4 centers on on-device and cloud AI integration. Just as we saw in our guide to top AI smart glasses, flagship wearables now act as hands-free voice terminals: the Buds Pro 4 feature built-in AI Live Translation for real-time bilingual conversations and direct voice wake-up for Google's latest Gemini assistant, which recently expanded with the Gemini 4 Carbon frontier model.
Content creators and voggers also gain Dolby-powered Clear Audio Recording, allowing the earbuds to act as wireless binaural lapel microphones when shooting video on your phone. For software engineers who spend eight hours hunched over a laptop, built-in IMU motion sensors power a Neck Health monitoring feature that alerts you when your head posture tilts downward for extended stretches.
Mobile gamers pairing the earbuds with a high-refresh handset—such as the smartphones covered in our Redmi K100 vs iQOO Neo 12 comparison—can enable a dedicated game mode that drops end-to-end wireless audio latency down to a blistering 39 milliseconds, alongside Bluetooth 5.4 dual-device multipoint connectivity.
Battery endurance takes a healthy step forward across both the earbuds and the pebble-shaped charging case. With Active Noise Cancellation turned off, the OnePlus Buds Pro 4 deliver up to 13 hours of continuous playback on the earbuds alone and a massive 53 hours of total listening time with the charging case—up from 43 hours on the previous generation.
When you enable Pro Adaptive ANC with the standard AAC codec, total battery life settles at a dependable 26 hours with the case (or roughly 5.5 hours per charge when streaming lossless 24-bit/192kHz audio over the heavy LHDC 5.0 codec with ANC active). As detailed on the official OnePlus Global portal, a quick 10-minute USB-C fast charge injects up to 14 hours of combined playback.
The charging case also supports convenient Qi wireless charging, or you can top it up on the road using the 5W reverse wired power bank mode on a long-lasting phone like the one tested in our OnePlus N6 review. The earbuds themselves carry an IP55 dust and water resistance rating against sweat and monsoon drizzle, though the charging case itself is not water-resistant.
OnePlus has listed the Buds Pro 4 in two metallic, pebble-styled colorways: Titanium Shadow and Polar White. As reported by Gizmochina, the earbuds share their core dual-driver hardware and AI feature set with the recently introduced Oppo Enco X4, which retails for €219 in Europe.
While OnePlus has not yet confirmed the exact retail release date or regional pricing on the global listing page, early retail database trackers point to an expected price around €199 to €219 globally and roughly ₹13,999 to ₹14,999 in Asian markets, where the earbuds should officially take the stage alongside the upcoming OnePlus 16 global rollout.
By pushing total battery stamina to 53 hours, doubling active noise cancellation depth, and adding practical AI Live Translation and Google Gemini integration to its Dynaudio dual-DAC hardware, the OnePlus Buds Pro 4 check every box for a late-2026 flagship audio upgrade. Whether you stream 24-bit/192kHz LHDC tracks or take wind-free calls on your daily commute, the hardware improvements over the Buds Pro 3 are substantial.
We will update this guide with official regional pricing and open-sale links the moment OnePlus announces the retail launch window.
