Is Sony E5663 The Sony Xperia Z4 Compact? New Sony Smartphone Crosses Benchmark Sites The Sony E5663 has popped up on not one but two benchmarking sites and the specs suggest that the model is the successor of the Xperia Z3 Compact i.e. the Xperia Z4 Compact and will boast a 13MP selfie camera by Anu Passary