Android fragmentation but on the same phone

[RMXO]

Thank you very much for your answers, I am really not technically savvy or confident so would just use the OTA updates.

You don't need to be tech savy to hack your Android phone. All you need to is follow directions to the "T".

Read up about hacking your phone model a bit & find out if it interests you or not. Being able to backup all your apps+data & a nandroid is worth it alone.