Sony Xperia C3 features a 5.5-inch HD (720×1280 pixel) Triluminos display supported by Bravia Engine 2. It is powered by 1.2GHz quad-core Qualcomm Snapdragon processor, Adreno 305 GPU and 1 GB of RAM. It has 8 GB of internal memory which could be expanded to 32 GB via the microSD card slot. It runs on Android 4.4 KitKat. Mostly importantly it has a 5MP front camera with flash.
Sony has started rolling out the Android 5.1.1 update for Xperia C3. The .ftf file is available for this device which will enable you to install it manually rather than waiting for the OTA. Follow the detailed guide given below.