OnePlus Buds 4 review: Underpromise and overdeliver

In the ever-expanding wireless earbud market, standout options are a rarity. However, the OnePlus Buds 4 have emerged as a remarkable contender, offering an unexpectedly high-quality experience at a price of ₹5,999. By judiciously taking cues from its flagship Buds Pro 3, OnePlus has crafted a well-rounded product that strikes a fine balance without feeling like a compromise. When it comes to sound performance, the Buds 4 truly excel. They boast a coaxial dual-driver system, featuring an 11mm dynamic woofer paired with a 6mm planar diaphragm tweeter, alongside a dual DAC architecture—features seldom seen in this price range. Users can expect rich and layered audio, with deep bass that complements mids beautifully, while the highs deliver a level of clarity that is often lacking in more affordable earbuds. Active Noise Cancellation (ANC) is rated at an impressive 55dB, although real-world performance may vary. Nonetheless, it proves sufficient for daily routines, effectively dimming the noise of commutes and office environments. Users will find it particularly useful during flights, where it significantly reduces engine noise. Although it doesn't quite match the capabilities of premium brands like Bose or Sony, the ANC performance is commendable for this price tier. However, the transparency mode reveals some limitations, as it can sound unnatural and isn’t ideal for prolonged use. Aesthetically, the design of the OnePlus Buds 4 is understated yet elegant. Lightweight with an ergonomic fit, they remain comfortable even during extended wear. The slightly thicker stems enhance grip, making adjustments easy. The compact charging case features a matte finish that resists smudges and is easily portable. The earbuds have an IP55 rating for dust and water resistance, while the case is rated at IPX4, making them suitable for gym sessions and commutes. The Buds 4 come equipped with several thoughtful features that enhance their versatility. With a latency of just 47ms, they perform admirably for gaming, such as in titles like COD Mobile, which demand low-latency audio. EQ customization options are somewhat limited unless paired with a OnePlus device, and the touch controls can occasionally be inconsistent. Battery life is another strong point, with the earbuds offering up to 11 hours on a single charge. When combined with the case, total playback can extend to 44 hours without ANC. With ANC activated, users can typically expect 5-7 hours of use—still a solid performance. Fast charging is a significant advantage, providing nearly three hours of playback from just a 10-minute charge. In summary, while the OnePlus Buds 4 may not be flawless, they deliver impressive audio quality, strong noise cancellation, extended battery life, and practical features. They stand out as one of the leading options in the sub-₹6K earbud segment, prompting many to reconsider the necessity of spending more on True Wireless Stereo (TWS) earphones.