OnePlus OxygenOS 15 brings Circle to Search, Share with iPhone: What’s new

China’s OnePlus has unveiled its Android 15-based OxygenOS 15 user interface for its smartphones. The new operating system adds Google’s gesture-driven Circle to Search and several new artificial intelligence features powered by Google Gemini AI models. There is also a new “Share with iPhone” option that the company said will simplify file sharing from an OnePlus device to an Apple iPhone. Additionally, the new OxygenOS 15 will offer smoother transitions with parallel processing capability, new icons, a new lock screen design, and system-wide aesthetic changes.