Taking a look around the best Android development forum that exists, that of XDA, I have found this magnificent contribution from my friend Shan89, who has performed a amazing adaptation work of all native applications of the X so that we can enjoy them in any type of terminal with Android OS.
The only requirement is that we are shooting a version of Android 4.1.2 or higher versions.
This pack which comes compressed in a ZIP file, we can download it directly from this link and includes, in addition to the Launcher native of X, all the applications of this terminal, including the Desktop widgets.
El Xperia Z1 native applications pack It consists of the following elements:
- z1 launcher
- Calendar app (working events)
- calendar widget
- Album App
- album widget
- Clocks
- Weather widget
- top contacts widget
- Recent call widget
- SocialLifeNews app / widgets - credits @Rizal Lovins
- Walkman
- world-clock
- OnOffTools widgets
To install it on your compatible Android terminal, remember that you must be in a version of Android 4.1.2 or higher. You just have to unzip the ZIP file and copy it directly to your device and then run all the apk, one by one.

To install the apk it will be enough to go to the route where we copy it with any file explorer for android and click on each of the files. How is it logical to be able to install these applications outside the Play Store we must have enabled from the terminal settings, the permissions to install apps from unknown sources.
If you decide to download and install this Xperia Z1 native app pack, we would ask you to share with everyone the type of terminal in which you have installed it, the Android version and if it works correctly or not.
I personally have it installed on my LG G2 and everything I have been able to test so far works perfectly.
More information - Android 4.4 for the Xperia Z1 and Z Ultra in January, and Android 4.3 before for the Z, ZR and ZL
Download - Xperia Z1 Native Applications Pack