Hi,
Well, it depends...
If you have the "characteristics selection method" setting set to "list" in the HikaShop configuration, the variants of each product will display as a listing on the product page, and each variant listed there will have its price displayed next to it automatically.
If you don't, then the variants are not directly visible. What you select is a value in each characteristic of the product, and the combination of the selection triggers the selection of a variant. And at that point, the price display of the product page is refreshed with the price of the selected variant.
For example, on the page
demo.hikashop.com/index.php/en/hikashop/...with-characteristics
You can't display the price for each color or the price for each shoe size. That's because the price is set for each variant which is a combination of the color and shoe size. And thus, the price can only be displayed when you change the selection and the system knows the combination you're talking about.
For example, we can't put a price next to each shoe size because for the same 4.5 shoe size, the price will vary based on the selected color.
If you want to have different prices displayed for different choices of selection dropdowns on the product page, then it's likely that you want to use options, like here:
demo.hikashop.com/index.php/en/hikashop/...ct-page/with-options
There, the price is displayed for each choice and there is a total price which is the sum of the product base price, and the price of each selected option.