Japanese telecommunications operator KDDI, is all set to unveil new au smartphones for the Japan market by late May. All the models will be powered by the latest Android 4.0 operating system.

Moreover, three of the five models are compatible to WiMAX and support the +WiMAX service that allows Wi-Fi tethering for high speed internet access. The new line up includes AQUOS PHONE SERIE ISW16SH, which is a user friendly model and is loaded with advanced features.

The company also claims that it is the world’s first model with built in NFC and FeliCa functions. The next is the Arrows Z ISW13Fwhich is the first au smartphone with quad core CPU that enables multi-tab browsing, rich gaming capabilities, and fast and smooth video playback.

Another model is the URBANO PROGRESSO which has the stylish design of the URBANO series and is the first in the world to incorporate Smart Sonic Receiver technology. Next is the AQUOS Phone SL IS 15 SH, which is a user friendly phone for the first time smartphone users. And the final one is the AQUOS PHONE CL IS 17SH which has an always on memory LCD that shows the time and missed calls. All the models support the Japan specific functions like the infrared communications and are resistant to water and dust.