Oppo Enco W31 vs OnePlus Bullets Wireless Z – Specs, Price & Comparison (2026)

12 Month Manufacturer Warranty. IPX5 water resistance cannot guarantee protection under extreme conditions. Typical BluetoothÂ® data is based on Bluetooth A2DP SBC (328 Kbps, 44.1 kHz) standards. Voice assistant activation and power level checking capabilities are supported by OPPO smartphones running ColorOS version 6.0 or higher. Due to performance characteristics of BluetoothÂ® headphones, electromagnetic interference in the surrounding environment may impact their signal stability. "High-quality audio format" refers to LDAC and "Typical audio format" refers to non-LDAC formats. Devices running Android version 8.1 or higher support LDAC by default. For longer play time, you can turn off high-quality audio in your phone's BluetoothÂ® settings.

IP55 Sweat and water-resistant A single 10 minute charge gives you 10 hours of music and movies With convenient features like Quick Switch, Quick Pair and Magnetic Control, listening to your music has never been this simple A massive playtime of up to 20 hours with full charge The Bullets Wireless Z comes with Warp Charge technology

Key Differences

If you're comparing OnePlus Bullets Wireless Z and Oppo Enco W31, both models offer a strong combination of sound performance, comfort, and modern wireless features. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. Battery life varies between the two (10 Hours vs 12 Hours), which affects how long you can use them on a single charge. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. The frequency response differs (20 Hz - 20000 Hz vs 20 Hz ~ 20000 kHz), which can influence how well the headphones reproduce lows, mids, and highs. From a usability standpoint, both models provide a reliable and premium headphone experience. OnePlus Bullets Wireless Z and Oppo Enco W31 offer different noise cancellation capabilities (No vs AI Uplink), which can impact how effectively they block external noise. There is a noticeable difference in weight (28 gm vs 22 gm), which may affect comfort during extended use.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.

Top Differences

Battery Life: 10 Hours vs 12 Hours
Noise Cancelling: No vs AI Uplink
Weight: 28 gm vs 22 gm

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Key Differences

Top Differences