The OnePlus Buds Pro 3 use an in-ear fit and are fully wireless, with no neckband or wingtip attachments included. They weigh 10.56 g and carry an IP55 ingress protection rating, making them resistant to sweat and light moisture. Each earbud features a stereo speaker configuration, while the design omits RGB lighting, a UV light, and any built-in display, keeping the overall form focused and uncluttered.
The OnePlus Buds Pro 3 include both active noise cancellation and passive noise reduction, giving listeners two layers of sound isolation. Audio is produced through an 11 mm driver unit with a frequency response spanning 10 Hz to 40,000 Hz, an impedance of 18 Ohms, and a sound pressure level of 98.5 dB/mW. Spatial audio is supported, though the earbuds do not feature Dolby Atmos, Dirac Virtuo, or a neodymium magnet in their driver configuration.
Each earbud holds a 58 mAh rechargeable battery rated for 10 hours of playback, or 6 hours when active noise cancellation is in use, and the 566 mAh charging case extends the total available listening time to 43 hours. A full charge takes 1.1 hours, and the case supports wireless charging alongside the standard wired option. A battery level indicator is included, while solar charging is not part of the power setup.
The OnePlus Buds Pro 3 connect wirelessly via Bluetooth 5.4 with a maximum range of 10 m, and support fast pairing for quicker device setup. Supported audio codecs include LDHC and AAC, while LDAC, aptX in all its variants (including aptX Adaptive, aptX HD, aptX Low Latency, aptX Lossless, and aptX Voice), and Bluetooth LE Audio are not available. Auracast and NFC pairing are also absent. Audio latency is rated at 94 ms, and the charging case uses a USB Type-C connection for wired charging.
The OnePlus Buds Pro 3 include a practical set of everyday features, among them ambient sound mode, in/on-ear detection for automatic playback pausing, a mute function, voice prompts, and a find device feature for locating misplaced earbuds. They support multipoint connectivity for up to two devices simultaneously and can function as a headset for calls. Controls are handled via a panel on the device itself rather than an in-line control, and a built-in camera remote shutter function is also present. A travel bag is included in the box, while notification readout, an in-line control panel, and a body temperature sensor are not part of the feature set.
The OnePlus Buds Pro 3 are equipped with a six-microphone array that includes noise-canceling capability, helping to reduce unwanted background sound during calls. Microphone sensitivity is rated at -38dBV/Pa.