Kyocera Adreno S2400 is a flip phone that offers a simple design and functional features. This is not a functionality loaded phone. In fact, the Adreno is designed for thos users who needs only the basic functions of their phone - that is calls. That is not such a bad thing. In fact, its simplicity is very much welcome especially in the market where manufacturers are trying everyday to one-up each other with flashy new phones. Still, the Adreno isn't all that primitive. It does offer Bluetooth 1.2 and voice dialing. You'll also find text and multimedia messaging, basic organizer features, a speakerphone, a WAP Internet browser, voice memos, a vibrate mode, and a 500-contact phone book.

The Adreno's design is dominated by squares and rectangles, from the rectangle of the phone itself to the square, and monochrome, external display. This angular theme continues to the inside as well. The 65,000 color rectangular display is surrounded by a rectangular frame while just below it are the boxy navigation array and keypad buttons.