One of the many unique things about the upcoming OnePlus One is that it will run a custom version of CyanogenMod, dubbed “CyanogenMod 11S,” right out of the box. We don’t yet know what it’s going to look like, but we do get a brief taster from these leaked screenshots obtained by a “reliable tipster.”

Based on the image on the left, CyanogenMod 11S will look hardly anything like original CyanogenMod. Its clean and fancy lock screen sports bold, easy to read text, with notification previews, a battery life indicator, and weather information.

The “about phone” section of the Settings app confirms these screenshots were taken on a smartphone called the One, and that it runs Android 4.4.2 — Google’s latest version of KitKat. It also confirms that the One will have virtual, on-screen buttons rather than physical or capacitive touch ones.

The OnePlus One will get its official unveiling on April 23. It will be powered by the latest Snapdragon 801 processor with a 5.5-inch 1080p display, a 13-megapixel rear-facing camera, and a beefy 3,100mAh battery. It will cost under $400.

• SourceEngadget