Let's say the sentence is:
I need a bigger one.
My attempt is:
Necesito una más grande.
This obviously doesn't sound right to me. So, I would like to know how a native speaker would translate such sentences with an adjective (in comparative form, such as bigger, smaller, thinner, higher, etc.) with the word "one" after it.
Similarly, what if I had to say another one instead of bigger one here? Will it be una otra?