That's not bad for a device as highly spec'd as the Sony Xperia Z1s, which includes a 5 inch screen with resolution of 1080 x 1920, powered by a quad-core 2.2GHz Qualcomm Snapdragon 800 CPU. 2GB of RAM is aboard along with 16GB of native storage. If you need more storage, you can always turn to the 64GB capacity microSD slot. A 20.7MP camera is on back while a 2MP snapper adorns the front, and a 3000mAh battery powers the handset. Android 4.3 is pre-installed out of the box. Don't forget that the phone is rated IP58 for water and dust proofing. That means it will survive a 30 minute submersion at 5 feet or less.
The phone can now be purchased online from T-Mobile, and will be in the stores starting January 21st.
You can now order the Sony Xperia Z1S online from T-Mobile for zero down
source: T-Mobile via Phandroid