Sony Xperia Z1 Compact vs HTC One Mini. This is a full comparison between the Sony Xperia Z1 Compact and the HTC One Mini.br br The just announced Sony Xperia Z1 Compact is the most powerful small sized smartphone, packing a quad core CPU with 2GB of ram and HD display. The Xperia Z1 Compact boasts a 20.7MP camera with water proofing.br br The HTC One Mini still comes with its very compact design being lighter and thinner. Its also comes with vastly superior speakers while also being a cheaper phone.