Android 4.4.4 is now available for the Xperia Z1s on T-Mobile. The update changes the build number of the Xperia Z1s to 14.4.B.0.37, and brings a few changes to both look and functionality. This includes compatiblity with the Sony Smartband SWR10.
In addition to SWR10 compatibility, this update also lets the Z1s work well with Sony's Lifelog app. The Z1s also now has a transparent navigation bar, slight changes to the status bar and quick settings, and new boot animations and themes.
Have you downloaded the update to your Xperia Z1s yet, and if so, what do you think? Leave your thoughts in the comments below.
Source: Xperia Blog