New User... what do I need?

If i were to buy a Raspberry Pi for this - worth splashing for the 4GB?
They suggest 2gb here Install Home Assistant - Home Assistant (

Just wanted to bump the above question - with no sign of lockdown ending soon thinking I’ll go the Pi route but wondering if 2GB sufficient?

I have the 8Gb version. Just thinking for the future.

I also have Rpi4 8Gb for the future.

Thanks guys - might well go for the 8gb them