At some stage this year I am probably looking to upgrade my S20 and for only one reason the battery life is very average, its not awful but having had an iPhone 11 Pro for a little while the s20 struggles to make it till bed time. I would rather be phoneless than go back to iphone so it leaves me with samsung. Out of the s21 + and ultra which one should offer better battery life? And would it give me all day? My iPhone 11 pro would get me 8-9 hours soc with loads of standy. My s20 gets me 5-6 soc with some standby. I know the ultra has a bigger battery but the plus has less to power, not sure if that would make a difference? I do prefer smaller phones but willing to have a large one in exchange for better battery.