As it was leaked in the rumor that Sony will announce a new variant of the current Xperia Z1 sold internationally at CES 2014. Comes true and Sony has announced the Xperia Z1S along with the Xperia Z1 Compact.
Another change is the Background Defocus app for the camera which lets you defocus the background in photos for a shallower depth of field.
The headphone jack on top has been moved to the center from the near the left side on T-Mobile's request. Last but not the least Xperia Z1S comes with a six movies to download from Video Unlimited, including Captain Phillips, on the day of its digital release, 10 handpicked PlayStation®Mobile games, and a 60-day free trial of Music Unlimited.
The Xperia Z1S will be available only in Black from T-Mobile's website from January 13 and from T-Mobile stores from January 22. It will be available at a price of $22 per month for a 24 month contract and if you purchase it along with the Sony PlayStation 4 you get a $100 rebate via Visa gift card.
The new model is nearly identical and is available exclusively through T-Mobile for American customers. Although, there are some changes occurs like it will be having a 32GB onboard memory instead of 16GB for the international model with a microSD card slot.