- Impressive sound quality
- Strong ANC for the price
- Excellent battery life
- Comfortable and secure fit
- Affordable price
- Limited touch controls
- No custom equalizer
- Call quality dips in noisy environments
The OPPO Enco Air4 Pro earbuds offer impressive sound quality, up to 49dB ANC, and a remarkable 44-hour battery life with the case. Featuring Bluetooth 5.4, a comfortable IP55-rated design, and reliable connectivity, they’re a solid budget choice, though touch controls and transparency mode could be better.
I’ve recently tested another budget-friendly pair of earbuds, the OPPO Enco Air4 Pro, and they’ve left quite an impression. Not widely available on the global market, I snagged these gems via AliExpress for around $70.
After a couple of weeks of daily use, I’ve got plenty to share about their performance, comfort, and features.
If you’re considering picking up a pair, stick around—this article will break down everything you need to know to make your decision easier.
OPPO Enco Air4 Pro Specifications
| Category | Specifications |
|---|---|
| Color Options | Moonlight White | Midnight Black |
| Driver | 12.4mm Dynamic Driver |
| Bluetooth | Bluetooth 5.4 |
| Codec | LHDC 5.0/AAC/SBC |
| Battery Life | Capacity: 58mAh (earbuds) | 440mAh (charging case) Playback (50% volume, AAC): – Max ANC: 5.5h (earbuds), 20h (with case) – ANC Off: 12h (earbuds), 44h (with case) |
| Charging | Charging Time: 60min (earbuds) | 80min (earbuds + case) |
| Water Resistance | IP55 |
| Size | Earbud Size: 29.9mm x 20.30mm x 23.87mm Case Size: 66.60mm x 51.24mm x 24.83mm |
| Weight | Earbud Weight: 4.4g ± 0.1g Total Weight (with case): 47.0g ± 0.2g |
| Features | Ultra-Wide Frequency ANC Hi-Res Audio with LHDC 5.0 Low Latency Transmission |
Unboxing
Straight out of the box, the OPPO Enco Air4 Pro keeps things simple but thoughtful. You get the essentials: a user manual, safety and warranty guide, a USB-A to USB-C charging cable, and a set of extra silicone ear tips in two additional sizes.
The earbuds and their charging case come in a compact, pear-shaped package that feels premium despite the price.
Available in Moonlight White or Midnight Black, the case has a matte finish with a subtle “starry” texture that resists fingerprints. It’s small enough to slip into your pocket or toss in a backpack, making it a great companion for travel or daily commutes.
Design and Build Quality
The OPPO Enco Air4 Pro sports a stem design reminiscent of Apple’s AirPods Pro, but with its own flair. Each earbud weighs just 4.4g, making them incredibly lightweight and comfortable for long wear.
The included silicone ear tips (three sizes) ensure a snug fit, and I found them secure even during runs or vigorous head shakes. No ear fatigue here, even after hours of use.
The earbuds have a glossy finish that contrasts nicely with the matte charging case, which houses a 440mAh battery and features a USB-C port and a Bluetooth pairing button.
The case feels sturdy, though the lid has a tiny bit of play, which is a minor nitpick. The earbuds themselves are IP55-rated for dust and water resistance, so they can handle sweat, rain, or the occasional splash without issue.
One small gripe: the stem’s concave touch control area can trap dust, but it’s not a dealbreaker.
The in-ear design, combined with the lightweight build and silicone ear tips, makes these earbuds a joy to wear.
The IP55 rating means they can handle sweat and light rain, making them a great pick for workouts or outdoor adventures.
The stem design also houses the microphones effectively, though, as mentioned, call quality can struggle in very windy or crowded settings.
Overall, the build feels polished for the price, striking a balance between style and practicality.
Audio Quality
Let’s talk sound—the heart of any earbud experience. The Enco Air4 Pro packs 12.4mm titanium-plated dynamic drivers, delivering a balanced sound profile with a punchy bass, clear mids, and crisp highs.
I tested these with a mix of genres, and I’m satisfied with the quality. The bass has a satisfying depth without overpowering the mids.
The earbuds also support Hi-Res Audio with the LHDC 5.0 codec, which offers near-lossless audio when paired with compatible devices (like OPPO or OnePlus phones).
Compared to pricier options like the Galaxy Buds Pro or AirPods Pro 2, the Enco Air4 Pro holds its own, though it doesn’t quite match their refinement.
The soundstage is surprisingly wide for budget earbuds, creating an immersive experience for movies and music.
However, the HeyMelody app’s equalizer is limited to three presets (Original Sound, Bass Boost, Clear Vocals), which is a bummer for audiophiles craving custom tweaks.
Still, for most listeners, the out-of-the-box tuning is more than adequate, delivering a vibrant and engaging sound that punches above its price point.
ANC and Transparency Mode
The Enco Air4 Pro boasts up to 49dB of noise cancellation, which is impressive for sub-$100 earbuds.
The triple-microphone system, combined with a 4000Hz ultra-wide frequency range, does a solid job of blocking out ambient noise.
During my tests in a noisy café and on a busy street, the ANC effectively muted low-frequency sounds like engine hums and air conditioning units.
Mid-range noises, like chatter, were reduced but not entirely eliminated, which is typical for earbuds in this range.
The personalized ANC feature, accessible via the HeyMelody app, adjusts to your ear canal shape, though I didn’t notice a dramatic difference after running the test.
Transparency mode, which lets you hear your surroundings, is decent but not perfect. Voices came through slightly muffled, and I had to lower the music volume to hold conversations comfortably.
The mode avoids the artificial hiss common in cheaper earbuds, but it’s not as natural as premium models like the AirPods Pro. Still, for commuting or quick chats, it gets the job done.
The earbuds also feature a wind noise reduction algorithm, which helps during calls in breezy conditions, though call quality can dip in very noisy environments.
Connectivity and Features
The Enco Air4 Pro uses Bluetooth 5.4 for rock-solid connectivity. Pairing is a breeze, especially with Google Fast Pair on Android devices (Marshmallow and above).
The earbuds support multipoint connection, letting you switch seamlessly between two devices, like a phone and a laptop.
I found the connection fast and reliable, with no noticeable lag when answering calls or starting a video.
The low-latency mode (47ms) is a boon for gamers, syncing audio perfectly with on-screen action during mobile games like Call of Duty.
The HeyMelody app (available for Android 7.0+ and iOS) adds a layer of customization, letting you manage ANC modes, check battery levels, and enable features like spatial audio or earbud fit detection.
If you’re using an OPPO or OnePlus phone with ColorOS 11.0+, you can access additional settings via the Wireless Earphones app, including a neat double-tap-to-take-a-photo feature.
My only complaint? The touch controls are limited—you can play/pause, skip tracks, or switch ANC modes, but volume control isn’t supported, which feels like a missed opportunity.
Battery Life
OPPO claims up to 12 hours of playback per charge with ANC off (5.5 hours with ANC on) and a total of 44 hours with the charging case (20 hours with ANC).
In my real-world tests, I got about 7 hours with ANC on at 50% volume, and the case easily pushed the total past 30 hours.
A quick 10-minute charge delivers around 4 hours of playback (ANC off), which is a lifesaver for on-the-go users. After two weeks of daily use—2 to 3 hours of music, shows, or calls—I only needed to charge the case once.
The USB-C charging is quick, fully topping up the case in about 80 minutes.
Final Thoughts
To be honest, my expectations were quite high for the OPPO Enco Air4 Pro earbuds, and while they’re impressive, I feel the Realme Buds Air 7 Pro, which I recently tested, edges out slightly overall.
If you’re looking for an even better option, the OnePlus Buds 4 is a much stronger choice, though it’ll cost you more.
But when I consider the price-to-performance ratio, the OPPO Enco Air4 Pro is undeniably another value-for-money product.
Best Deal: View on AliExpress
Also see my latest Redmi Buds 7S Review
Nick, the Co-founder of Earbuds Arena, is a seasoned freelance tech journalist with over ten years of experience covering wearables, apps, headphones, and gadgets. When he’s not immersed in the tech world, you’ll likely find him unwinding with video games, going for a run, or enjoying a game of soccer on the field.
