Black friday tomorrow, new phone advice?

As on all the news and radio
Tomorrow is discount day

I have a sim plan with three, which I don’t really want to give up, as I get unlimited internet with unlimited tethering

So i’m looking for a unlocked phone roughly the £300 mark
around about 5 inch or larger screen
Must be on android

stuff like the Samsung 6 is good, but its now a few years old
Is it worth going for a lesser brand
with more up to date technology

Any advice would be greatly received
regards
tonyb

I use a Sony X ? I think it’s a 5 .
Good little phone easy to use .

My lad has this oneplus.net/uk/3 & it’s easily as good as my HTC One M8 for about half the price.
He loves his techie stuff & reckons it’s brilliant!

Samsung note 4-5 i love mine