What Andriod phone upto £450

[PostHeads123]

I've got an Samsung S5 and want a new phone had been set on an S8 but missed the Amazon Prime deal of £439, was prepared to pay £499 for it (which it had seemed to be for months) but noticed today for some reason S8's everywhere seem to have gone up a £100 to £589 - £599, Argos / John Lewis etc ggrrr ... I thought they would get cheaper !

Anyway I cant afford £589 so wondered what others would recommend Android wise, I'm not bothered about brand just want something that performs well, I tend to use my S5 for watching youtube, photo's etc, not music.

cheers