Available in three different memory sizes, 1Gb, 2Gb and 3Gb at £34, £44 and £54 respectively.
Unfortunately it won’t just be a case of buying one and swapping out an existing Pi because this new one is now powered via a USB-C connector and it requires a 3 amp PSU.
I will get one but not straight away. The only Pi I have which might benefit from the higher performance is the one mounted outside at the top of my mast that’s running my feeder and getting a decent power supply to it was a challenge at a couple of amps. Replacing it with a Pi 4 would require a lot of extra work.