Navi Update

Hello. Does anyone know the specific differences of the Navi Software/Hardware ? The vehicle has the “Standard Gen2” variant. Software 1.4.0 The said vehicle is from MY16. For MY17 there is the version “Compact Gen5” The device itself has the same size. Can you upgrade the whole with Kia from Gen2 to Gen5-Compact ? Or is a “new” device needed for this ? . Does the radar warning function via POIs (WLAN – Hotspot: an) Only with the Gen5 variant, or must be any as to be added ? Thank you, Nice start in the week