ptkelly
Well-known member
Welcome to the joys of owning an Android handset. Get used to it! Sorry to say this so harshly, but it's true. You get a nice shiny Android, and all is good. You then receieve a major OS update and battery life goes down the drain. It happened with my G4 and many other people's handsets regardless of make when we updated to Marshmallow.
I can only suggest you uninstall apps you no longer require and allow the phone to settle into the update. It will slightly improve over time.
Really? I never cared for my Samsung but then I got a Nexus 5 and was quite happy. I recently bought a Nexus 5x and am running Android 7 and am even happier. You seem to be very unhappy and the variable isn't Android.