Asus Zenfone 4 is the smallest device in the Asus Zenfone series. As its name suggests, it sports a 4 inch touchscreen with a WVGA screen resolution. It runs on Android Jelly Bean v4.3 OS on a 1.2 GHz dual-core Intel Atom Z2520 processor.
On the memory side, it has 1GB RAM and not yet disclosed internal memory with memory card slot. It has only a rear camera which is 5 MP and uses a 1,170 mAh removable battery. For connectivity, it has 3G, Bluetooth and Wi-Fi. Its price starts at $100