OPPO Enco Air4: Quick Specifications

OPPO Enco Air4 Overview

The OPPO Enco Air4 is positioned as an everyday true wireless earbud designed to combine strong bass-focused audio, active noise cancellation, clear calls and long battery life.

Its main hardware highlight is the 12.4mm titanium-coated dynamic driver. OPPO pairs this with a 32dB ANC system, Transparency Mode and an AI-based dual-microphone calling system.

Bluetooth 5.4 provides modern wireless connectivity, while OPPO's low-latency mode is rated at 47ms when used with compatible OPPO phones.

Design & Comfort

The Enco Air4 uses a compact stem-style earbud design with a rounded, glossy finish. OPPO describes the shape as a droplet-inspired design intended for comfort and everyday wear.

Each earbud weighs approximately 4.2 grams, keeping the individual earbuds lightweight. The complete earbuds plus charging case weigh approximately 46.2 grams.

Sound Quality: 12.4mm Titanized Diaphragm Driver

OPPO equips the Enco Air4 with a large 12.4mm dynamic driver featuring a titanium-coated diaphragm. The larger driver is designed to deliver fuller bass and a more energetic listening experience.

OPPO also provides three sound tuning options through the Enco Master Equalizer: Bass Boost, Clear Vocals and Original Sound.

Audio Specifications

32dB Active Noise Cancellation

Active Noise Cancellation is one of the Enco Air4's headline features. OPPO rates its maximum noise cancellation depth at up to 32dB under laboratory test conditions.

ANC can help reduce continuous environmental sounds such as traffic, background chatter and other everyday noise, allowing users to focus more easily on music or podcasts.

Transparency Mode

Transparency Mode allows environmental sounds to pass through the earbuds, which can be useful when speaking with someone or when you need to remain aware of your surroundings.

AI Clear Call & Microphones

OPPO uses a dual-microphone system combined with AI processing to improve voice pickup during phone calls.

The microphones are designed to capture the user's voice more clearly while reducing unwanted environmental noise.

Battery Life: Up to 43 Hours

Battery life is one of the strongest features of the OPPO Enco Air4. OPPO rates the earbuds for up to 12 hours of AAC music playback on a single charge with ANC off.

With the charging case, total playback can reach up to 43 hours under OPPO's stated test conditions.

Battery figures are OPPO laboratory results using AAC playback at 50% volume under specified conditions. Actual battery life varies with volume, ANC, connectivity and other usage factors.

IP55 Dust & Water Resistance

The Enco Air4 earbuds carry an IP55 dust and water-resistance rating. This gives the earbuds added protection for everyday exposure to dust and moisture.

The earbuds have also undergone OPPO's durability testing, including drop and environmental tests.

Bluetooth 5.4 & Low-Latency Connectivity

Bluetooth 5.4 provides the Enco Air4 with a modern wireless connection and a stated range of up to 10 metres under suitable conditions.

OPPO rates its low-latency transmission at 47ms when the earbuds are used with compatible OPPO smartphones.

*OPPO's 47ms figure is laboratory data when used with compatible OPPO phones. Actual latency can vary depending on the device and application.

Dual Connection & Google Fast Pair

The Enco Air4 supports dual-device connectivity with compatible OPPO ColorOS devices, allowing users to connect to two devices and switch between them.

Google Fast Pair is also supported, providing a quicker pairing process with compatible Android devices.

HeyMelody App & Customisation

Android and iOS users can use the HeyMelody application to access supported configuration options, check battery levels and customise touch controls.

Available Controls

Gaming Performance

The Enco Air4 is suitable for casual mobile gaming, especially when paired with a compatible OPPO phone that can take advantage of the earbud's low-latency transmission.

OPPO's stated 47ms figure can help reduce the perceived delay between on-screen action and audio, although actual performance depends on the phone, game and connection conditions.

Sound Tuning Options

OPPO includes three main Enco Master Equalizer presets so users can change the sound character depending on the type of content they enjoy.

OPPO Enco Air4: Pros & Cons

OPPO Enco Air4 Full Specifications

Who Should Buy OPPO Enco Air4?

Who Should Consider Another Earbud?

Users specifically looking for high-resolution Bluetooth codecs such as LDAC should note that OPPO lists AAC and SBC for the Enco Air4. Likewise, users who want a water-resistant charging case should look elsewhere.

Final Verdict

The OPPO Enco Air4 is a well-rounded pair of wireless earbuds that puts strong emphasis on battery life, ANC, bass and everyday usability. Its 12.4mm titanized diaphragm driver provides the hardware foundation for a powerful sound profile, while the 32dB ANC system helps reduce everyday background noise.

The up-to-43-hour total battery rating is another major advantage, especially for users who do not want to recharge their earbuds frequently. Bluetooth 5.4, Google Fast Pair, Dual Connection and the HeyMelody app further improve the overall experience.

The main limitations are the AAC/SBC codec selection, the fact that the charging case is not IP55 rated and that some of the best latency and ecosystem features are particularly suited to compatible OPPO devices.

Source & Specification Note

Product specifications in this review are based primarily on OPPO's official Enco Air4 specifications and product information. OPPO lists the ETEE1 model, 12.4mm dynamic driver, 32dB ANC, Bluetooth 5.4, AAC/SBC codecs, 58mAh earbuds, 440mAh charging case, IP55 earbuds and the stated battery figures.

Battery, charging and latency figures are OPPO laboratory results under specified test conditions. Actual performance may vary depending on volume, device, network conditions, fit, environment and other factors.