Complex sentence: The phone serves as the successor of the Xperia Z5 and the first flagship of X-series, also it is the first phone manufactured by Sony which utilizes USB Type-C connectivity for charging and data transfer.
Split into simpler sentences: The phone serves as the successor of the Xperia Z5 and the first flagship of the Xperia X series,. It is also one of the first smartphone manufactured by Sony to utilize the USB Type-C connectivity for charging and data transfer.