The update brings with it a whole host of new features, the new Material Design layout being one of them. It also brings with it lock screen notifications, the 64-bit ART compiler designed to open apps faster, Project Volta for battery performance tweaks, a new Recent Apps page, and much more.
Once you download and install the update, your software version should be 14.5.B.0.236. Most manufactures and carriers recommend that your device have at least 50% battery life and hooked up to Wi-Fi before downloading this update.
If you haven’t gotten the update yet, firmware upgrades like these are usually sent out first in small stages to make sure there are no bugs that render the device useless. If successful, the update is sent out to a larger crowd of people, and so on. It could take anywhere from a couple days to two weeks to get the new update. If you want to update your Xperia Z1 manually, you can get the FTF firmware file along with install instructions here.
What do you think of Android 5.0.2 on Sony’s Xperia devices? Be sure to let us know in the comments.