product specifications

[rezaee]

hi

how can i:
create product with many specifications?
for example...
when we want to add a tv we have many specifications like size or other specifications.
when we add a custom field;customer can select between many choies.
but when i add a tv; iwant add a model that it is 32inch. maybe other tv that is 40inch; has other specifications.
then i want insert a value for size specification for each model. not all size specifications for one model.

how can i create some thing like these(table of specifications that it is filterable) :
http://celularescostarica.co.cr/samsung-galaxy-grand-prime
http://celularescostarica.co.cr/samsung-galaxy-s6-edge

or

www.ilcompatibileshop.com/brother/toner-rigenerati-colore-per-brother/dr130cl.html