OnePlus Buds 4

Why we tested it

The OnePlus Buds 4 caught our attention by promising flagship-level audio technology at a mid-range price point. We wanted to see if the integration of dual drivers and dual DACs could truly elevate the listening experience beyond standard consumer earbuds. The market is saturated with generic wireless options, but the Buds 4 stand out by offering high-resolution LHDC 5.0 support and an advanced 55dB adaptive noise cancellation system. We tested them to determine if these technical specifications translate into a tangible improvement in daily usability, specifically focusing on whether the real-time noise adjustment algorithms provide a meaningful advantage over competitors in noisy environments.

Who it's for

These earbuds are ideal for current OnePlus smartphone users who want to unlock exclusive features like AI translation and deep EQ customization. They are also a great fit for commuters and office workers who prioritize effective noise isolation and a comfortable, lightweight design for long listening sessions. However, users who prioritize cross-platform parity should look elsewhere; those on non-OnePlus devices may find that some of the most compelling software features remain locked behind the proprietary ecosystem, limiting the overall value proposition for iOS or non-OnePlus Android owners.

Real-world performance

In real-world testing, the OnePlus Buds 4 deliver a robust audio profile characterized by clear highs and punchy bass, thanks to the dual-driver configuration. The adaptive noise cancellation is a standout, effectively dampening both low-frequency engine rumbles and higher-pitched ambient chatter. While the call quality is reliable for everyday tasks, the microphones can struggle slightly in heavy wind. Battery life is competitive, and the quick-charge feature provides several hours of playback from just a ten-minute charge. However, the user experience is heavily tiered; while OnePlus owners enjoy seamless integration and advanced AI tools, other users must rely on the HeyMelody app, which lacks the same depth of control. Overall, they perform as a high-value, mid-range option that punches above its weight in sound quality and noise isolation.

Key pros & cons