The default version of software installed on Samsung Galaxy S5 is Android 4.4.2 (KitKat), also upgradable to Android 6.0 (Marshmallow) officially via OTA Update. But, if you have updated your Galaxy S5 smartphone to Android 6.0 (Marshmallow) and now want Android nougat for your Galaxy S5, then you are in the right place here.
Read moreHow To Download and Install Samsung Galaxy S5 Nougat Update [Official]