Or 13 with adds ? If you have like takumi that ' d be perfect <| sep |> i ' m a be honest , I don ' t think they should ' ve called that in the first place <| sep |> 5 . 1 would be better because of the included bug fixes . From what I have read some people complain about the battery lasting a shorter time . Two friends of mine with a Note 3 also complained about that . The Lollipop theme is also very white compared to the dark holo theme so this will also drain the battery faster . There is also a change in the way sd cards are handled , if I recall correctly . It was also preferable to have KitKat if you wanted to root your Note 3 , not sure if this is still the case . I know , my answer was rather vague and anecdotal , but when I thought about updating I researched a bit and came to the conclusion not to do it . I can ' t give you the exact arguments any more without researching again . Another thing . I like dark themes more than white ones