Why is there no FM radio in some of the Xperia X-series models?
The hardware of Xperia XZ3, Xperia XZ2, Xperia XZ2 Compact, Xperia XZ2 Premium, Xperia XZ1, Xperia XZ1 Compact, Xperia X Performance, Xperia XZ, Xperia XZ Premium and Xperia XZs does not support FM radio. A software update will not make the FM radio available. However, you can download a third-party web radio app from Google Play.
Note! Sony does not warrant or guarantee the performance of any third-party applications. Neither does Sony warrant or guarantee the performance of content downloaded or acquired in other ways through such applications. Similarly, Sony is not responsible for any damage or reduced performance of your device attributable to the transfer of third-party content.