The Sony Xperia Z1S runs Android 4.3 Jelly Bean out-of-the-box with Sony’s custom user interface. The smartphone is powered by 2.2GHz quad-core Qualcomm MSM8974 processor backed by 2GB of RAM. There is 32GB of inbuilt storage, which is unfortunately not expandable via micro SD card.
Rest of Sony Xperia Z1S specs look good
The Sony Xperia Z1S comes with similar specifications to the Xperia Z1, though the former comes with a higher IP58 waterproof rating. It also comes with 5-inch full-HD Triluminos display powered by Sony Mobile BRAVIA Engine 2.
It features the 20.7-megapixel Exmor RS sensor alongside BIONZ image processor engine and pulsed LED flash. It also includes a 2 MP front camera. The device comes with 3000mAh battery. Connectivity options include Wi-Fi, Bluetooth, NFC, Xperia Link and 3G.