OPPO Enco X4 Review: A More Comfortable Alternative to Pixel Buds Pro 2
The OPPO Enco X4 solve the problem that matters most in daily earbud use: they stay comfortable and secure without constant adjustment. That gives them an advantage over the Google Pixel Buds Pro 2 for listeners who struggle to get a reliable fit, even though both pairs offer strong sound, active noise cancellation and access to Gemini Live.
That’s a personal comparison, not a universal verdict. Ear shapes vary, and the Pixel Buds Pro 2’s compact design and sound still appeal to me. But their eartips have repeatedly felt insecure in my ears, sometimes leaving the seal too weak for ANC to work effectively. I’ve tried swapping tips, with some improvement, yet needing third-party accessories to make a premium pair fit properly feels like a compromise.
A fit that holds without pressure
The Enco X4 use a more traditional shape, with a rounded body and a short stem. Each earbud weighs six grams. The soft, pliable tips have an internal wax guard, and a small twist after insertion has been enough to keep them in place. They’ve remained secure without the pressure or fatigue I’ve sometimes experienced with tighter-fitting designs.
The shape of the nozzle may limit the choice of replacement tips: its stadium-like profile could make third-party options difficult to fit, much as with the Pixel Buds Pro 2. In practice, I haven’t felt a need to replace the supplied tips. They don’t create the intensely tight seal that foam tips can offer, so listeners who prefer that sensation may want to try them before buying. For me, the Enco X4 strike a useful balance: stable in the ear, without feeling wedged in.
That comfort changes how the earbuds work in everyday listening. I’m no longer adjusting one side to improve the fit or trying to restore a seal. OPPO also includes swipe controls on the stems, with subtle texture that makes the control area easier to find by touch. The swipes have been precise in use.
Sound depends on the phone and the EQ
OPPO equips the Enco X4 with an 11mm woofer, a 6mm tweeter and a dedicated DAC to tune their frequency ranges. Dynaudio helped refine the sound. The earbuds support Hi-Res Audio and LHDC Lossless when paired with the OPPO Find X10 Pro Max, alongside Bluetooth 6.1 and dual-device connection.
In listening, the phone makes a noticeable difference. The Enco X4 sound good with an Apple iPhone 18 Pro Max, but fuller, louder and more forceful when connected to the Find X10 Pro Max. That extra body suited NMIXX’s Birthday Wish: the vocals have room to build, and the track’s crescendo lands with satisfying energy at higher volume.
The sound benefits from adjustment in OPPO’s Hey Melody app, which is available on Android and iOS. Its Dynaudio modes give listeners a starting point, but the most bass-heavy setting can muddy songs that already have a strong low end. On IVE’s Snakeskin, the Thundering Bass profile reduced definition. My preferred setup was Pure Vocals with BassWave set to 2; High Vocal also worked well on NMIXX, with a little BassWave added to round out the presentation.
That tuning makes the Enco X4 enjoyable, though their bass response isn’t as precise as I’d like. The practical takeaway is simple: avoid assuming the most emphatic bass preset will sound best. A restrained EQ brings more clarity and balance.
ANC, calls and Gemini Live
The Enco X4 include ANC with an AI-enhanced adaptive mode, three microphones and IP55 dust and water resistance. In my use, noise cancellation has been excellent. OPPO says the earbuds come with “Low-Strain Noise-Cancelling Ear Tips,” a design detail that fits my experience of a secure seal without uncomfortable pressure.
Gemini Live is another point of overlap with the Pixel Buds Pro 2. With the Enco X4, the wake phrase “Hey Google, let’s talk live” starts a conversation. The feature has been useful for brainstorming aloud, particularly because earbuds let me move around the house while talking.
There is one difference in the experience: when I used Gemini Live with the Find X10 Pro Max, the audio sometimes began several words into Gemini’s reply. I didn’t encounter that delay with the Pixel Buds Pro 2, and I haven’t found a setting that consistently fixes it. Aside from that issue, the live conversation experience has felt comparable.
Battery, switching and price
OPPO claims up to 13 hours of listening from the earbuds on a charge with ANC off, and up to 53 hours including the charging case. The Enco X4 have switched reliably between the Find X10 Pro Max and the iPhone 18 Pro Max. Hey Melody provides the settings and sound controls on both platforms, making it possible to tune the earbuds without relying on an OPPO phone.
Price and availability shape the comparison. In the UK, the Enco X4 are listed at £219, the same retail price as the Pixel Buds Pro 2. The source lists them as requiring import in the US, where the Pixel Buds Pro 2 start at $230 and are often discounted to $190 or less. Those discounts can make Google’s earbuds the less expensive choice for American buyers.
My read is that the Enco X4 are the better everyday pair for anyone who finds the Pixel Buds Pro 2 hard to fit. They combine a secure, comfortable design with strong ANC, flexible device switching and sound that can rival Google’s earbuds after some EQ work. The Pixel Buds Pro 2 still win on their compact shape, and their Gemini Live replies have been more reliable in my testing. But when fit determines whether I want to keep wearing earbuds, OPPO’s design has earned the place in my rotation.
