We have already seen how to install WooCommerce, how to configure it correctly and we have launched to create our first simple product so start to notice all its power, which begins to show in variable products .
To begin you should know that the process of creating a variable product is in principle the same as a simple product but with some important differences, that we will see.
Variable products in WooCommerce
The first thing is, in Product information choose from the drop-down Variable product . 
By specifying that it is a variable product we will not be asked for a price in the general settings as in the simple products, since this will depend, logically and on there the name, of the variations that we specify later.
The rest is completed under the same criteria as in a simple product.
Attributes of variable products in WooCommerce
When we get to this section we must, first, give a name to each attribute, and then write down the values of the attribute, separated by a horizontal bar (the one in the number 1 of the keyboard), but WooCommerce will not identify them as values (important).
Finally, and most importantly, we must activate the box marked " Used for variations " in those attributes that are going to be offered as such, otherwise it will not be available to include them, they will simply be attributes without influence or characteristics own.
Variations of the variable products in WooCommerce
Once we have created the attributes You have to start applying variations, so the first thing we will do is select the dropdown of Add variation and select the option " Create variations for all attributes " so that WooCommerce uses the previously defined attributes as variations, for which we will have to specify differentiated values.
Once this is done we will see the list of the previously created attributes, and it is here when the moment arrives, by clicking on each one to display it, for to establish each and every one of the fields of each of the variations .
In this way , as in the example shown in the capture, we define the capacity (16Gb or 32Gb) as used for variations, we can, and we will, detail the price, characteristics, or even specific photo for each variation. .