OPPO Enco X4 Launched With ANC, Lossless Audio and Up to 53 Hours of Battery Life

Key Highlights

• Features 11mm dynamic woofer and 6mm tweeter dual-driver setup
• Supports 48kHz/24-bit lossless audio and up to 2.3Mbps transmission
• Active noise cancellation with adaptive, deep, medium and light modes
• Up to 53 hours of total playback with the charging case
• Bluetooth 6.1, dual-device connectivity and IP55 protection

OPPO has launched the Oppo Enco X4 wireless earbuds in China, expanding its premium audio lineup alongside the new Find X10 series. The earbuds combine a dual-driver audio system with active noise cancellation, spatial audio and support for high-resolution lossless playback, targeting users who want more advanced audio features than a basic pair of wireless earbuds.

The Enco X4 use an 11mm dynamic woofer and 6mm tweeter, with support for 48kHz/24-bit lossless audio and a transmission rate of up to 2.3Mbps. OPPO has also worked with Dynaudio on the audio tuning, while the earbuds add multiple ANC modes, four-microphone call noise reduction and AI-powered features.

Battery life is another major focus. OPPO claims up to 13 hours of playback from the earbuds alone and up to 53 hours with the charging case when using AAC with noise cancellation disabled. The case supports both USB Type-C and wireless charging.

Design & Build

The Enco X4 use an in-ear design and weigh approximately 5.6 grams per earbud, while the charging case weighs 41.8 grams. Together, the earbuds and case weigh around 53 grams.

OPPO offers the earbuds in Pink Gold, Soft White and Titanium Grey. The earbuds also carry an IP55 rating, providing protection against dust and water splashes. That makes them suitable for everyday use and workouts where there is some exposure to sweat or light moisture, although the rating does not make them waterproof for swimming.

The charging case supports both USB Type-C and wireless charging, giving users two ways to recharge the system.

Audio & Driver Hardware

The Enco X4 use an 11mm dynamic woofer and 6mm tweeter, giving the earbuds separate drivers for lower and higher frequency ranges. The system has a stated frequency response of 10Hz to 40kHz.

OPPO has also partnered with Dynaudio for the tuning and introduced a fourth-generation coaxial dual-driver design with dual-DAC crossover architecture. The company positions this as a major part of the Enco X4’s audio upgrade.

The earbuds support AAC, SBC, LHDC and LC3 codecs. They can also handle 48kHz/24-bit lossless audio, with OPPO claiming transmission rates of up to 2.3Mbps.

These specifications make the Enco X4 particularly interesting for listeners with compatible high-resolution audio sources. However, codec support and driver specifications alone cannot determine overall sound quality. Tuning, ear-tip fit and the source recording also affect what users actually hear.

Active Noise Cancellation

Active noise cancellation is one of the Enco X4’s central features. The earbuds offer deep, medium and light ANC levels, along with transparency and adaptive modes.

The adaptive mode is designed to adjust noise cancellation depending on the surrounding environment, while transparency mode allows outside sounds to pass through when users need to remain aware of their surroundings.

OPPO claims the ANC system can suppress up to 99.8% of everyday noise. This is a manufacturer claim rather than an independently measured result, so real-world noise reduction will depend on the environment and how well the earbuds seal in the user’s ears.

Calls & Microphones

The Enco X4 use four microphones, combining three silicon microphones with one VPU microphone. The earbuds also support four-microphone AI call noise reduction.

The microphone system is intended to separate the user’s voice from surrounding noise during calls. OPPO has also added spatial audio and other voice-related features to the earbuds.

As with ANC, actual call performance can vary depending on wind, traffic, crowds and other environmental conditions, so the company’s noise-reduction claims should not be treated as independent test results.

Spatial Audio & Smart Features

The Enco X4 support spatial audio, expanding their use beyond conventional stereo playback. OPPO has also introduced features including head-gesture controls, quick voice commands and stereo recording.

Another notable addition is AI real-time translation. OPPO says the feature supports 24 commonly used languages and is designed to allow two people to communicate while one person views the translation on a phone and the other uses the earbuds.

The availability and functionality of some AI features can depend on the connected device, software version and region, so they should not automatically be assumed to work identically on every Android or iOS phone.

Connectivity

The Enco X4 support Bluetooth 6.1 and can maintain connections with two devices simultaneously. This allows users to connect the earbuds to two compatible devices rather than repeatedly disconnecting and pairing when switching between them.

The stated wireless transmission range is up to 10 metres under suitable conditions.

Compatibility extends to both Android and iOS devices, although some advanced OPPO-specific functions may depend on the phone and software ecosystem.

Battery & Charging

Each earbud contains a 65mAh battery, while the charging case has a 576mAh battery.

With AAC playback at 50% volume and noise cancellation disabled, OPPO claims up to 13 hours of playback from the earbuds and 53 hours with the charging case. Enabling ANC reduces the claimed figures to 6 hours for the earbuds and 26 hours with the case.

Using LHDC reduces the maximum claimed playback time further to 10 hours for the earbuds and 42 hours with the case when ANC is disabled.

The case takes approximately 65 minutes to charge through USB Type-C, according to OPPO’s specifications. Wireless charging takes approximately 2.5 hours.

Price & Availability

The OPPO Enco X4 has been introduced in China at a regular price of CNY 1,199. OPPO’s initial sale price is CNY 1,099.

The earbuds are available in Pink Gold, Soft White and Titanium Grey. Shipping began on September 24 in China.

OPPO has not announced India pricing or a global launch timeline for the Enco X4 at the time of writing. Therefore, the Chinese price should not be presented as an official Indian retail price.

What Makes the OPPO Enco X4 Different?

The Enco X4’s main selling point is not any single specification. Instead, OPPO has combined Dynaudio audio tuning, dual-driver hardware, lossless transmission, adaptive ANC, spatial audio and long claimed battery life into one pair of earbuds.

The lossless-audio support is particularly relevant for listeners with compatible music sources, while the multiple ANC modes make the earbuds more adaptable to different environments. The 53-hour maximum battery claim also means users who disable ANC can go several days between case charges depending on their listening habits.

The trade-off is that several of these headline features depend on compatible devices, codecs, software and listening conditions. Buyers should therefore look beyond the driver count and battery headline when evaluating the earbuds.

Pros & Cons

Pros

• Dual-driver setup with 11mm woofer and 6mm tweeter
• 48kHz/24-bit lossless audio support
• Up to 2.3Mbps lossless transmission
• Multiple ANC modes including adaptive ANC
• Up to 53 hours of claimed total playback
• Wireless and USB Type-C charging
• Bluetooth 6.1 with dual-device connectivity
• IP55 protection

Cons

• Global and India availability has not been announced
• Maximum battery figures require ANC to be disabled
• Some advanced features depend on compatible devices and software
• OPPO’s ANC performance figures are manufacturer claims rather than independent measurements

Final Verdict: Should You Consider the OPPO Enco X4?

The OPPO Enco X4 is designed for users who want a feature-heavy pair of premium TWS earbuds rather than a basic set focused only on music playback. Its combination of dual drivers, lossless audio support, ANC, spatial audio and long claimed battery life gives it a broad feature set.

Best for: Users who prioritise high-resolution audio, active noise cancellation, long battery life and advanced connectivity features.

Consider alternatives if: You need earbuds with confirmed India or global availability, or if you mainly want simple everyday listening without paying for advanced audio and AI features.

Bottom line: The Enco X4’s strongest proposition is the combination of lossless audio and advanced noise cancellation with a 53-hour maximum claimed battery life. Whether those features justify the price will depend largely on the user’s phone, audio sources and how much they actually use the higher-end capabilities.

FAQs

What is the OPPO Enco X4 price?
The OPPO Enco X4 has a regular price of CNY 1,199 in China, 

How long does the OPPO Enco X4 battery last?
OPPO claims up to 13 hours of playback from the earbuds and up to 53 hours with the charging case when using AAC with noise cancellation turned off.

Does the OPPO Enco X4 support ANC?
Yes. The earbuds offer deep, medium and light noise cancellation, along with transparency and adaptive ANC modes.

Does the OPPO Enco X4 support lossless audio?
Yes. The Enco X4 support 48kHz/24-bit lossless audio and transmission of up to 2.3Mbps under supported conditions.

Is the OPPO Enco X4 coming to India?
OPPO has not announced India pricing or availability for the Enco X4 at the time of writing.

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