Series option in Magento and other CMS?

Question

1C-Bitrix

Who knows the module where there are series of products, like here https://comfy.ua/smartfon-samsung-a305-galaxy-a3-3...
https://www.citrus.ua/smartfony/iphone-xs-512gb- sp... one option separate product id
another color
another model
number of memory
or what kind of logic do these modules use ?

Answer 1

There are two paid modules from the same author with slightly different features.
Advanced options
Related options
Paid modules for Opencart 2. Unfortunately, there were no free options.