OPPO has given its flagship Enco X4 wireless earbuds a global launch, announcing the new model in Palma, Spain, on October 21, 2026. The earbuds bring Dynaudio-tuned sound, upgraded adaptive noise cancellation, Bluetooth 6.1, and OPPO’s first lossless wireless audio implementation. They also promise up to 53 hours of playback with the charging case.
But there’s a catch worth understanding before buying: the Enco X4 work with iPhones, Android phones, and Windows devices, yet some of their most interesting features require a compatible OPPO smartphone. The headline lossless mode is particularly restrictive, while AI translation, enhanced connectivity, and stereo recording have their own software and hardware requirements.
According to OPPO’s October 21 global announcement, the Enco X4 will reach international markets gradually. India has confirmed pricing and an October 29 sales date, while European availability and pricing vary by country.
Will the Enco X4 work with your current phone?
The answer depends on what you want them to do. For everyday music, phone calls, and noise cancellation, the Enco X4 are conventional Bluetooth earbuds with broad device compatibility. Their more specialized capabilities are a different story.
If you have an OPPO Find X10 or Find X10 Pro Max
These are the most natural companion phones for the new earbuds. OPPO specifically advertises its full-chain LHDC Lossless audio transmission with the Find X10 series, and its regional product documentation narrows the maximum 2.3Mbps mode to Find X10-series phones equipped with MediaTek processors.
Both the Find X10 and Find X10 Pro Max use MediaTek Dimensity processors and ColorOS 17, as detailed in OPPO’s Find X10 series product guide. That makes them the clearest supported route to the advertised lossless experience, along with the newer ColorOS-dependent features.
Even with one of these phones, some settings must be enabled, and AI services remain subject to regional availability. Owning the right phone does not automatically activate every feature.
If you have an older OPPO or OnePlus phone
You can still use the earbuds for music and calls, and certain additional controls are supported on older ColorOS versions. OPPO documents adaptive ANC configuration, posture monitoring, and other earbud settings for compatible OPPO and OnePlus phones running ColorOS 12 or later, provided the appropriate Wireless Earphones app is updated.
However, an older premium OPPO phone should not be assumed to support the full 2.3Mbps lossless mode. The current global product documentation identifies the Find X10 series for that specific capability. AI translation also has stricter requirements than ordinary earbud configuration.
If you use an iPhone, Samsung Galaxy, Pixel, or Windows computer
You’re not excluded from the core product. The Enco X4 support standard Bluetooth audio, noise cancellation, cross-platform spatial audio, and dual-device connections. OPPO also offers the HeyMelody configuration app for supported Android and iOS devices.
The limitations concern OPPO-specific extras, not basic listening. You should not expect an iPhone or unrelated Android phone to unlock the advertised LHDC Lossless experience merely because it has a recent Bluetooth version. Similarly, OPPO’s built-in AI translation and specialized video recording workflows are not advertised as universal features.
The new Dynaudio audio system matters beyond lossless
Inside each Enco X4 earbud, OPPO uses an 11mm woofer for lower frequencies and a 6mm planar-diaphragm tweeter for higher frequencies. Each driver has its own digital-to-analog converter, allowing the two parts of the system to process different frequency ranges independently.
That’s a meaningful hardware change on paper. A dedicated woofer and tweeter give engineers more flexibility to balance bass, vocals, and treble than a design built around a single driver. Whether the result sounds more natural or detailed is still something that needs listening tests, not simply a conclusion from the driver count.
OPPO says it has worked with Danish audio company Dynaudio for seven consecutive years and offers five Dynaudio sound profiles on the Enco X4. Those include options aimed at clearer vocals, stronger bass, and greater high-frequency detail. There’s also a 10-band Sound Master equalizer for more precise adjustment.
This flexibility may matter more than a lossless badge for many buyers. Someone who finds the default sound too bass-heavy or wants clearer spoken-word content can potentially improve the experience by changing the tuning, without upgrading their phone or music subscription. Available configuration controls should still be checked for the particular phone and app combination.
What the 2.3Mbps LHDC Lossless claim really means
OPPO says the Enco X4 can transmit lossless audio at up to 24-bit/48kHz with a maximum wireless transmission rate of 2.3Mbps. It calls this its first full-chain lossless system for true wireless earbuds.
That claim is conditional. The official Indian product page specifies a Find X10-series phone with a MediaTek processor for maximum lossless transmission. An independent Smartprix review also reports that LHDC Lossless is disabled by default and must be enabled through Bluetooth settings.
The earbuds support AAC, SBC, LHDC, and LC3, according to OPPO’s official specification sheet. But listing a codec does not mean every connected phone can use every mode. Both ends of a connection have to support the appropriate technology and configuration.
Bluetooth 6.1 and Hi-Res Audio Wireless certification do not make lossless playback universal. Bluetooth version, supported audio format, transmission method, and actual lossless capability are separate things. LC3 support likewise should not be treated as proof that every LE Audio configuration will work with every phone.
The music source matters, too. A lossless Bluetooth link cannot recreate information already discarded from a compressed source recording. Our guide to lossless Bluetooth audio explains why the music service, phone, codec, and headphones all matter.
For an iPhone owner, the practical conclusion is straightforward: the Enco X4 may still sound excellent, but buying them specifically for OPPO’s lossless transmission feature would be a mistake. The same applies to owners of Android phones without confirmed support for the required LHDC Lossless implementation.
Adaptive noise cancellation could be the bigger everyday upgrade
Lossless audio appeals to enthusiasts, but improved active noise cancellation (ANC) is something more people may notice during a commute or flight.
The Enco X4 combine three microphones, a dedicated 6nm neural processing unit, and adaptive noise-cancellation algorithms. OPPO says the system recognizes environments such as subway trains, buses, taxis, and airplanes, adjusting noise cancellation as conditions change.
According to OPPO’s laboratory comparisons, overall noise-cancellation performance improves by up to 100%, while noise reduction in frequencies associated with human voices improves by up to 30%.
Those figures require context. The comparison is against the OPPO Enco X3s, not necessarily the original Enco X3. They are manufacturer measurements under OPPO’s testing conditions, not independently established reductions in every environment. A claim of up to 100% improvement does not mean the earbuds remove 100% of surrounding sound.
For commuters, the useful question is whether the new system can make engine rumble, traffic, and nearby conversations less distracting without creating an uncomfortable sensation of pressure. The hardware and software are designed to address those situations, but actual results depend heavily on fit and surroundings.
OPPO includes four sizes of redesigned silicone-foam ear tips, developed using data from more than 2,800 ear scans. The manufacturer says their design combines stronger passive isolation with less pressure in the ear canal. A secure seal is important because even sophisticated ANC cannot fully compensate for poorly fitting tips.
Automatic adjustments aren’t necessarily enabled out of the box
The Enco X4 offer adjustable cancellation and transparency settings, including an AI Adaptive Mode. However, OPPO’s regional documentation says Adaptive Mode is disabled by default.
On compatible OPPO or OnePlus devices with ColorOS 12 or later, the documented setup involves updating the Wireless Earphones app and opening the Enco X4 earphone functions from Bluetooth settings.
Another feature, Conversation Awareness, detects when you start speaking, lowers music volume, and switches toward transparency so you can hear someone without removing the earbuds.
That’s particularly useful for a quick exchange with a cashier or colleague. But OPPO’s fine print limits the feature to supported music apps, notes that it is initially disabled, and warns that compatibility varies by phone, software version, and app.
The Enco X4 also use their microphone array and a bone-conduction voice pickup unit for AI Clear Call. OPPO says this helps distinguish the wearer’s voice from background noise during calls. Call clarity and speech isolation are manufacturer claims rather than independently verified performance guarantees.
The 53-hour battery figure needs a second look
Battery life is where the difference between the headline and normal use becomes especially important.
OPPO advertises up to 13 hours from the earbuds and 53 hours with the charging case. Those maximums come from laboratory playback at 50% volume using AAC, with ANC switched off.
Turn on noise cancellation, and the advertised numbers change considerably. The official specifications provide separate figures for different codecs and noise-cancellation settings.
For someone who uses ANC throughout a working day, six hours per charge under the AAC test conditions is a more relevant reference than 13 hours. Switching to LHDC with ANC enabled brings the laboratory figure down to 5.5 hours.
The charging case also needs to be understood correctly. Twenty-six hours of total ANC-enabled AAC playback does not mean the earbuds can run for 26 hours without interruption. They need to return to the case for recharging between listening sessions.
OPPO lists USB-C charging, with laboratory charging times of approximately 55 minutes for the earbuds and 65 minutes for the earbuds and case together. Its Indian specification sheet also lists wireless case charging, taking approximately 150 minutes under the stated conditions.
Volume, calls, wireless interference, audio settings, and other enabled features can change real-world endurance. OPPO has not established that every advertised audio, AI, and connectivity feature can run simultaneously while maintaining the quoted battery results.
Two-device connections and spatial audio aren’t exclusive to OPPO phones
One of the more practical features is dual-device connectivity across operating systems. The Enco X4 can maintain connections to two devices, allowing a phone and computer, for example, to share the earbuds without repeated manual pairing.
Imagine listening to something on a laptop when a phone call arrives. Dual connection is designed to make that handoff easier. OPPO specifically warns that switching to a laptop may take longer depending on the connected devices, so it is not a guarantee of instantaneous transitions in every setup.
The earbuds also support spatial audio across Android, iOS, and Windows, with a head-tracking feature called Sound Follows You. OPPO describes this as making audio feel positioned in a three-dimensional space as the wearer moves.
That gives buyers outside the OPPO ecosystem something more interesting than basic stereo Bluetooth playback. Still, spatial processing is separate from lossless transmission. It should not be mistaken for evidence that the connected device is using LHDC Lossless.
The distinction also applies to connectivity terminology. OPPO’s Smart Bluetooth technology is not the same thing as ordinary dual-device pairing. According to the company’s global release, its enhanced Smart Bluetooth implementation requires designated OPPO or OnePlus phones and may not be available in every region.
Bluetooth 6.1 is part of the earbuds’ hardware specification, but neither the version number nor OPPO’s laboratory connection claims guarantee uninterrupted audio in crowded wireless environments.
For more on how simultaneous connections differ from pairing shortcuts and newer Bluetooth audio features, see our Bluetooth multipoint, Fast Pair, and LE Audio explainer.
AI translation, Gemini, and recording have different requirements
OPPO has added several features intended to make the Enco X4 useful beyond music. These are appealing on paper, but treating them as one universal AI package would be misleading.
AI Live Translation
OPPO advertises real-time translation and interpretation across more than 30 languages. In its described face-to-face conversation mode, translated speech plays through the earbuds while text appears on the connected phone.
However, the detailed compatibility notes are important. OPPO’s global announcement lists translation availability on select devices running ColorOS 15.0.1 or later. Its regional product pages distinguish supported AI Translation controls from the fuller AI Live Translation experience, which is specified for OPPO phones running ColorOS 17 or later.
That means an older OPPO phone running ColorOS 15 should not be assumed to support the complete continuous translation workflow merely because it meets the earlier minimum for some translation-related functions.
There are service restrictions as well. OPPO says AI Live Translation uses cloud-based processing and has a limit of 5,000 minutes per month, resetting at the beginning of the following month. Language support and regional availability vary, and the company does not guarantee error-free interpretation.
This distinction matters most when traveling. Translation that requires an online service should not be relied upon as an offline substitute for a phrasebook or a dedicated offline translation tool. For important medical, legal, or financial conversations, translated output should be independently checked.
Google Gemini through the earbuds
The Enco X4 are also OPPO’s first earbuds advertised with voice activation for Google Gemini. With a compatible device, users can say “Hey Google” to call up the assistant without reaching for their phone.
Unlike OPPO’s own translation features, this works through Google’s assistant ecosystem. Google’s headphone support documentation says Gemini must be configured as the primary assistant on an eligible phone or tablet, with Hey Google and Voice Match enabled for voice activation.
Availability is not universal, and the feature requires setup. It is not a standalone AI assistant running independently inside the earbuds. The connected phone or tablet remains central to how Gemini works.
Clear Audio Recording for video
OPPO also promotes Dolby-powered Clear Audio Recording, which captures stereo audio using both earbuds for video creation. The intended benefit is a more spacious recording than conventional single-source earbud audio, particularly when recording a person speaking on camera.
But this isn’t presented as a general-purpose wireless recording system for every camera app and phone. OPPO says the feature is optimized for Find X series smartphones, with the best experience on the Find X10 series and later. Its regional setup notes specifically require a Bluetooth connection to a Find X10-series phone for the featured recording workflow.
Anyone considering the Enco X4 instead of a separate wireless microphone should verify support on their exact phone and recording app. OPPO has not established the same stereo recording capability across all iPhones and Android devices, and microphone performance for professional video work remains unverified here.
There are a few smaller features worth checking, too
The Enco X4 introduce Neck Monitoring, designed to detect prolonged unfavorable neck posture and provide reminders. OPPO also describes a neck mobility test. These functions are disabled by default and require supported software configuration; the company explicitly says their results are informational rather than medical advice.
Sleep Tracking is another convenience feature. It is designed to pause supported music playback when the wearer falls asleep. OPPO notes that the function works with music apps, is initially disabled, and can vary with the phone and app version.
Spotify Tap offers a quicker route to music recommendations, but OPPO specifies that the latest Spotify app and nearby-device permission are needed. The function will not respond if Spotify has been force-closed or removed.
These features could make the earbuds more convenient, but they’re not reasons to assume complete compatibility with every phone. Buyers should distinguish between a feature being present in the earbuds’ marketing material and being enabled on their particular device.
Fit, water resistance, and regional availability
Each Enco X4 earbud weighs approximately 5.6 grams. OPPO offers Glacier White and Aurora Violet finishes, with four sizes of ear tips. The company markets its redesigned tips as reducing pressure while helping maintain an acoustic seal, although individual comfort will depend on ear shape and fit.
The earbuds carry an IP55 dust- and water-resistance rating. That’s useful protection against everyday exposure such as sweat or light rain, but it doesn’t make them waterproof or suitable for swimming. OPPO warns against strenuous exercise that may expose them to excessive perspiration.
The IP55 rating applies to the earbuds, not the charging case. OPPO explicitly advises against charging them while damp.
How much do the Enco X4 cost?
The Enco X4’s international introduction does not mean every market has the same price or sales schedule.
In India, the announced price is ₹19,999, with general sales scheduled to begin on October 29, 2026. OPPO’s Indian website currently advertises preorders, while Gadgets 360 reported an introductory preorder listing of ₹18,999 on October 22. Buyers should check the current checkout price because promotional offers can change.
For Germany and Austria, OPPO’s German-market announcement states a price of €219, with distribution planned through OPPO and Amazon. The UK also has an official Enco X4 product listing, although the current price and shipping options should be confirmed locally.
There is no US price or US sales date in OPPO’s global launch announcement. European and Indian prices should not be interpreted as confirmed US retail pricing. Availability remains subject to the company’s phased rollout.
Should you buy the Enco X4 without an OPPO phone?
Possibly, but the reasons for buying them change significantly depending on the phone in your pocket.
For someone already using a compatible Find X10-series phone, the Enco X4 offer the most complete advertised experience: LHDC Lossless support, deeper system integration, and access to the newer OPPO-specific recording and translation workflows, subject to the relevant settings and market restrictions.
For owners of other Android phones or iPhones, the more compelling reasons are conventional earbud qualities: their dual-driver audio design, adjustable sound profiles, adaptive noise cancellation, multipoint convenience, and cross-platform spatial audio. Those capabilities could make the Enco X4 attractive even without OPPO’s specialized services.
Yet buyers should weigh the price against features they’ll actually use. If lossless transmission or AI Live Translation is the main reason for upgrading, check compatibility before ordering. Paying flagship prices for features locked behind another company’s phone makes little sense unless the remaining earbud experience is worth that cost on its own.
Battery life also deserves priority over the largest advertised number. Someone commuting with ANC enabled should think in terms of roughly six hours of manufacturer-rated AAC playback per earbud charge, not the 13-hour ANC-off maximum.
The Enco X4 launch ultimately presents two related products in one: a broadly compatible pair of premium Bluetooth earbuds, and a more specialized audio accessory for OPPO’s newest phones. The hardware looks ambitious, particularly its sound system and adaptive ANC, but its full value depends on how much of the software experience your phone can unlock. Independent listening, cancellation, comfort, and battery testing will determine how well those promises translate into everyday use.