Hi @sheplfc74 This really be in the A series category https://eu.community.samsung.com/t5/galaxy-a-series/bd-p/galaxy-a-uk We have different sections for various Smartphones.
However to answer your question the A12 should be an improvement and reasonably priced for fairly impressive battery life and better display. The processor whilst improved though is not the best, though it may be sufficient for your mother's needs. Camera is going to be average but it is one of the entry level devices and may not be the most important factor. Aware that some folk on the community disappointed but it is fine for others.
There are quite a few reviews online, will post a few here. https://www.expertreviews.co.uk/mobile-phones/1413149/samsung-galaxy-a12-review https://www.smartprix.com/mobiles/samsung_galaxy_a12_vs_samsung_galaxy_j6-cpd1epff8wn4_11010o21dj8.p...
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
