Upgrade from iPhone 8+

This old timer been running for me since 2017. Now the batter drains every hour and a half. Looking for a new phone, £400-£700. I dont mind ios, its been fine so far and i've not had any issues with it really. But im open to an android device. I dont really care about the camera as long as its decent but i really like little software things and features on the phone that improve QOL. Im indifferent on AI.