If you don't mind spending a bit more, you can get a Samsung Galaxy A22 for £219 from Giffgaff (all phones bought from Giffgaff come unlocked, so you can use them on any network):
https://www.giffgaff.com/mobile-phones/samsung/samsung-galaxy-a22-5g/new
It's quite a new phone (released June 2021), the main specs are 64GB storage, Android 11, 4GB RAM and 48MP camera.
Full spec list:
https://www.gsmarena.com/samsung_galaxy_a22_5g-10873.php
If you're not a Giffgaff member, you need to buy a minimum £10 goodybag (top up) but you can cancel it anytime. The best thing with Giffgaff though, is it's a rolling 1 month contract which you can cancel at any time.