Operating system and performance - Sony Xperia X: Pricey without the features
Sony Xperia X F5121 32GB Single-SIM Factory Unlocked Smartphone - International Version with No Warranty (Black) : Cell Phones & Accessories
Sony Xperia X Review
Huawei P9 and Sony Xperia X reviewed and compared on price, features and performance
Sony Xperia X, Análisis. Review con características, precio y especificaciones - Xata
Sony Xperia XA hands-on
Sony Unveils New Xperia X Smartphones
Sony Xperia X Performance achieves top score in DxOMark Mobile ranking: Digital Photography Review
Review: Sony Xperia X - Unlocked (Phone Scoop)