Oppo Enco Air 4i

Name: Oppo Enco Air 4i
Brand: Oppo
SKU: 22343

Manufacturer: Oppo

The Oppo Enco Air 4i are true wireless earbuds designed for everyday use, offering a lightweight in-ear fit at just 8.6 g per bud. They carry an IP55 ingress protection rating, making them resistant to both dust and water splashes — a practical consideration for active use or commuting. The case and earbuds together support fast charging over USB Type-C, and the package includes a travel bag for portability.

On the audio side, the Enco Air 4i use a 12.4 mm driver unit covering a frequency range of 20 Hz to 20,000 Hz, paired with active noise cancellation that reduces available battery life to 8 hours per charge, compared to 12 hours without ANC. The charging case holds 560 mAh, extending total playback to 42 hours. Connectivity runs on Bluetooth 5.4 with AAC codec support, a maximum range of 10 m, and multipoint pairing for up to two devices simultaneously. Audio latency is rated at 47 ms, and the earbuds include an ambient sound mode, a find-device feature, and two microphones with a sensitivity of -38dBV/Pa for calls.

Pros

IP55 rating provides protection against dust and water splashes, suitable for outdoor and fitness use
Total battery life of 42 hours combined with the charging case covers extended use between full recharges
Supports simultaneous connection to two devices via multipoint pairing
Fast charging is supported, reducing downtime when the battery runs low
Ambient sound mode allows awareness of surroundings without removing the earbuds
A travel bag is included, adding a practical storage option out of the box

Cons

Wireless charging is not supported, requiring a wired USB-C connection every time
Active noise cancellation reduces earbud battery life from 12 hours down to 8 hours
No in-ear detection means music does not pause automatically when an earbud is removed
The microphones lack dedicated noise cancellation, which may affect call clarity in noisy environments
No support for high-resolution audio codecs such as LDAC or aptX, limiting audio transmission quality to AAC

Who is this for?

The Oppo Enco Air 4i are a solid fit for everyday commuters and casual listeners who want a lightweight, wire-free listening experience with a degree of environmental protection. The IP55 rating makes them a reasonable choice for gym sessions, outdoor walks, or light exercise where exposure to sweat and rain is a concern. Users who frequently switch between two devices — such as a phone and a laptop — will find the multipoint pairing for two simultaneous connections genuinely useful. The 42-hour combined battery life also suits those who prefer to go several days between charges rather than recharging daily.

Who is this NOT for?

Listeners who prioritize high-fidelity audio reproduction will find the Enco Air 4i limiting, as the absence of high-resolution codec support such as LDAC or aptX means audio transmission is capped at AAC quality. The earbuds are also not well suited to users who frequently take calls in noisy settings, given that the microphones lack dedicated noise cancellation. Additionally, those who rely on automatic ear detection to pause playback when removing an earbud will need to manage this manually, which may feel inconvenient during regular use.

Design:

Fit	In-ear
Ingress Protection (IP) rating	IP55
water resistance	Water resistant
weight	8.6 g
has no wires or cables	✓
are neckband earbuds	✕
wingtips included	✕
has RGB lighting	✕
has stereo speakers	✓
has UV light	✕
Has a display	✕

The Oppo Enco Air 4i adopt a true wireless, in-ear design with no cables or neckband, keeping the form factor minimal and unencumbered. Each earbud weighs just 8.6 g and supports stereo playback. Protection is handled by an IP55 rating, confirming resistance to dust ingress and water splashes from any direction. The earbuds do not include wingtips, RGB lighting, a UV light, or any onboard display, reflecting a straightforward physical design without additional embellishments.

Sound quality:

has active noise cancellation (ANC)	✓
has passive noise reduction	✓
driver unit size	12.4 mm
lowest frequency	20 Hz
highest frequency	20000 Hz
supports spatial audio	✕
has Dolby Atmos	✕
has Dirac Virtuo	✕
has a neodymium magnet	✕

The Oppo Enco Air 4i feature a 12.4 mm driver unit with a frequency response spanning 20 Hz to 20,000 Hz. Both active noise cancellation and passive noise reduction are supported, giving the earbuds two layers of sound isolation. Spatial audio, Dolby Atmos, Dirac Virtuo, and a neodymium magnet are not part of the specification for this model.

Power:

Battery life	12 hours
Battery life of charging case	42 hours
Battery life (ANC)	8 hours
charge time	2 hours
battery power (charging case)	560mAh
has wireless charging	✕
Has a solar power battery	✕
has a battery level indicator	✓
has a rechargeable battery	✓

The Oppo Enco Air 4i deliver up to 12 hours of playback on a single charge, which drops to 8 hours when active noise cancellation is enabled. The charging case holds 560 mAh, extending total battery life to 42 hours combined. A full charge takes 2 hours, and a battery level indicator is present to monitor remaining power. The earbuds use a rechargeable battery, while wireless charging and solar power are not supported.

Connectivity:

has fast pairing	✓
Has USB Type-C	✓
Bluetooth version	5.4
has LDAC	✕
has LDHC	✕
has Bluetooth LE Audio	✕
has aptX Adaptive	✕
has aptX Low Latency	✕
has aptX HD	✕
has aptX	✕
has aptX Lossless	✕
audio latency	47 ms
has aptX Voice	✕
has Auracast	✕
maximum Bluetooth range	10 m
supports Bluetooth pairing using NFC	✕
Can be used wirelessly	✓
has AAC	✓

The Oppo Enco Air 4i connect wirelessly via Bluetooth 5.4 with a maximum range of 10 m, and support fast pairing for quick device setup. The AAC codec is available for audio transmission, while LDAC, LDHC, aptX in all its variants, and Bluetooth LE Audio are not supported. Audio latency is rated at 47 ms, and NFC pairing and Auracast are absent. The charging case uses USB Type-C for wired charging.

Features:

has ambient sound mode	✓
has in/on-ear detection	✕
has find device feature	✓
Supports fast charging	✓
multipoint count	2
can read notifications	✕
has a mute function	✓
can be used as a headset	✓
control panel placed on a device	✓
Has voice prompts	✓
travel bag is included	✓
Has an in-line control panel	✕
Has a temperature sensor	✕
Has a built-in camera remote control function	✕

The Oppo Enco Air 4i include a practical set of features for daily use, among them ambient sound mode, a mute function, voice prompts, and a find-device feature. They support multipoint connection for up to two devices simultaneously and can function as a headset for calls. Fast charging is available, and controls are handled through a panel placed on the device rather than an in-line control on a cable. A travel bag is included in the box. In-ear detection, notification reading, a temperature sensor, and a camera remote shutter are not part of the feature set.

Microphone:

number of microphones	2
has a noise-canceling microphone	✕
mic sensitivity	-38dBV/Pa

The Oppo Enco Air 4i are equipped with two microphones rated at a sensitivity of -38dBV/Pa. The microphones do not feature dedicated noise cancellation on the mic side, meaning that capability is absent from the microphone setup specifically.

Final Verdict

The Oppo Enco Air 4i present a well-rounded set of specifications for users seeking a dependable pair of true wireless earbuds for daily use. Its 42-hour combined battery life paired with fast charging support stands out as a practical strength, and the IP55 protection adds reassurance for those who use earbuds in varied environments. While the absence of high-resolution codec support and mic noise cancellation places a ceiling on what the Enco Air 4i can deliver for more demanding listeners, the inclusion of active noise cancellation, multipoint pairing, ambient sound mode, and a sensible physical design makes this a competent option for casual, everyday listening scenarios.