OPPO’s latest true‑wireless offering
OPPO announced the Enco X4 earbuds on 21 October 2026, positioning them as the next step up from the Enco X3 released a year earlier. The company frames the X4 as a “smarter everyday companion”, bundling a Dynaudio‑co‑tuned acoustic system, AI‑enhanced active noise cancellation (ANC) and a set of connectivity tricks aimed at users of OPPO and OnePlus smartphones.
Sound engineering – Dynaudio partnership
According to the OPPO press release, the X4’s drivers have been jointly tuned with Dynaudio, a Danish audio‑hardware specialist known for its high‑fidelity speakers. The partnership is meant to deliver clearer mids and a more detailed high‑frequency response than the previous generation. While OPPO does not publish exact frequency‑response graphs, the claim mirrors the marketing language used for the Enco X3, which already offered a balanced sound signature. For UK buyers accustomed to the Samsung Galaxy Buds Pro 2 or the Apple AirPods Pro 2, the Dynaudio badge may be a differentiator for those who value a slightly more analytical sound profile.
AI‑adaptive active noise cancellation
The Enco X4 introduces an AI‑driven ANC system that “learns” the acoustic environment and adjusts the level of cancellation on the fly. OPPO states that the algorithm analyses ambient sound via the earbuds’ microphones and modifies the anti‑noise signal in real time. In practice, this should mean better performance in constantly changing settings such as a commuter train or a bustling café. The company also notes a “Clear Audio Recording” mode that is optimised for its Find X series phones – particularly the Find X10 and later – promising cleaner voice capture during calls or video recordings.
Smart Bluetooth and ecosystem benefits
A notable selling point is Smart Bluetooth Connection, which automatically pairs the earbuds with designated OPPO or OnePlus devices running ColorOS 15.0.1 or newer. The feature is marketed as a one‑tap connection that remembers the last paired phone and can switch seamlessly to a tablet or laptop when needed. OPPO warns that the technology may not be available in every market, but the earbuds remain compatible with any Bluetooth‑enabled device, albeit without the auto‑switch convenience.
Battery life and charging
OPPO’s lab tests (conducted at 25 °C, using AAC playback, ANC off and volume set at 50 %) claim up to 13 hours of music playback per earbud charge. When the charging case is included, total listening time reaches approximately 53 hours. These figures are competitive with rivals – the Galaxy Buds Pro 2 list 11 hours (18 hours with case) and the AirPods Pro 2 advertise 6 hours (30 hours with case). The X4 also supports fast charging: a 5‑minute case charge reportedly provides around an hour of playback, though OPPO does not disclose the exact wattage.
Durability and water resistance
The earbuds carry an IP55 rating, meaning they are protected against low‑pressure water jets and limited dust ingress. The rating follows the GB/T 4208‑2017 (China) and IEC 60529‑2013 standards. OPPO cautions users not to charge the earbuds while they are damp, a common advisory for water‑resistant devices.
AI live translation and software features
Another software‑centric addition is AI Live Translation, which works on select OPPO devices with ColorOS 15.0.1+. The feature leverages Google’s Gemini AI (as noted in the disclaimer) to provide real‑time language conversion during calls or voice chats. Availability varies by region, and the press release does not list the supported languages, but the capability could appeal to travellers and multilingual households.
How the Enco X4 fits into the UK market
For UK Android shoppers, the Enco X4’s strongest arguments are its integration with OPPO’s own smartphone line and the AI‑enhanced ANC. However, the ecosystem lock‑in may limit appeal for users of other Android brands. The price point has not been disclosed in the press release, but OPPO typically positions its earbuds in the mid‑range segment – roughly £120‑£150 at launch – competing directly with the Samsung Galaxy Buds 2 Pro (£149) and the Google Pixel Buds Pro (£149).
If you already own an OPPO Find X10 or a OnePlus device running the latest ColorOS, the X4 could provide a smoother pairing experience and access to the AI translation feature. For those on other Android phones, the earbuds still offer solid sound, respectable ANC and a long battery life, but the exclusive Smart Bluetooth benefits will be unavailable.
Verdict from the press release
OPPO frames the Enco X4 as a “smarter everyday companion” that blends high‑quality audio engineering with AI‑driven convenience. While the technical claims are promising – especially the Dynaudio‑tuned drivers and adaptive ANC – real‑world performance will need to be verified by independent reviewers. UK buyers should keep an eye out for early hands‑on impressions, particularly regarding the effectiveness of the AI ANC in noisy environments and the latency of the live‑translation function.
Bottom line: The Enco X4 brings a premium sound partnership, AI‑enhanced noise cancellation and a hefty 53‑hour case battery to OPPO’s true‑wireless lineup. Its value will hinge on price, ecosystem compatibility and how well the AI features work in everyday use.
