國外網友在向Sony求證時,Sony官方人員堅持Xperia Z1 Compact後蓋是玻璃材質。但是,Sony卻對其開發者網站的Xperia Z1 CompactPDF介紹資料進行了修改,把原本“前後置面板均採用耐用鋼化玻璃打造”(Both the front and back are made of durable tempered glass)改成““前置面板採用耐用鋼化玻璃打造”(“The front side of the phone is made of durable tempered glass)。