Inside, the Sony Xperia C4 has a MediaTek 1.7 GHz Octa-core CPU combined with 2 GB RAM and 16 GB on-board memory. Like the M4 this phone also has an additional slot to upgrade storage. However, the Sony Xperia C4 is not water proof. The phone is powered by a 2,600 mAh battery, which is supposed to give the users over 12 hours of talk time. A 13 MP auto focus camera comes as part of the package. The price is still not out.