At the CES conference, Asus has announced ZenFone smartphones. The ZenFone is available in three sizes (4 inches, 5 inches, and 6 inches). It is also available in various colors. All three of these handset types will launch with the Asus Zen user interface and Android 4.3 operating system. The ZenFone is HSPA+ enabled, has 1GB of RAM, and has a microSD card slot built in that can be expanded to 64GB. The ZenFone 6 has a 6-inch display with a 1280×720 pixel resolution, 2GHz Intel Atom Z2580 processor, and a 3,230mAh battery. The ZenFone 5 has a smaller display and smaller 2050 mAh battery.