Sailfish X license from Jolla allows for installing Sailfish OS (Sailfish X) on the following Sony devices (as of November 2018):
- Sony Xperia XA2 Single SIM (H3113 & H3123 & H3133)
- Sony Xperia XA2 Dual SIM (H4113 & H4133)
- Sony Xperia XA2 Plus Single-SIM (H3413)
- Sony Xperia XA2 Plus Dual-SIM (H4413 & H4493)
- Sony Xperia XA2 Ultra Single-SIM (H3213 & H3223)
- Sony Xperia XA2 Ultra Dual-SIM (H4213 & H4233)
- Sony Xperia X Single SIM (F5121)
- Sony Xperia X Dual SIM (F5122)
The license is tied to Jolla account which purchased the license. When signing in to this Jolla account from an Xperia device the license becomes also tied to the IMEI code of the device. Hence the license is valid on one device and one Jolla account. The license cannot be transferred from one device model to another but they all need a separate license.
After you have signed in from your Xperia to this same Jolla account the licensed content becomes available in Jolla Store in category 'Jolla'. Restarting the device may be required in some cases - this is the first remedy for you if there are issues in seeing the content.
 Currently: Android support [a], MS Exchange support [b] and predictive text input [c].
Note that none of these will appear as icons in the app grid (after installing them) as they are not really applications. Use "My apps" in the pull down menu of Jolla Store app to view what is installed in your device.
[a] allows for installing Aptoide and other Android app stores which in turn makes it possible to install actual Android apps.
[b] allows for signing in to one's Exchange account from Settings > Accounts, after which Exchange will appear in Email and Calendar apps.
[c] appears as predicted words on top of the virtual keypad while typing.
It is good to restart the device after installing [a], [b] or [c].
Sailfish X Free is a trial version for the Xperia product variants. You can download and install it free of charge to try out Sailfish OS on your Sony device. The complete software package including Android Support requires the Full license and will be available later this year (2018) for the Sony Xperia XA2 products. The full license is available for Xperia X already.
This table shows what the licenses cover.