Do not enable tethering/Wifi Hotspot as it makes the system unstable
Modem - 4G+ can cause a modem restarts on networks with certain carrier aggregation setting - Workaround: Remove LTE from preferred network
BT – No support for LDAC
Camera quality not on par with Xperia O SW
Storage MTP - Cannot transfer files or create new folders on external sdcard
GPS – GPS fix is slow to acquire on some device