Breakdown of Теперь экран гораздо прочнее и лучше.
и
and
хороший
good
экран
screen
теперь
now (as opposed to before)
Questions & Answers about Теперь экран гораздо прочнее и лучше.
Does гораздо apply to both прочнее and лучше in this sentence?
Yes. Just like in English, the intensifier гораздо carries over to the second comparative adjective, лучше. You do not need to repeat it to mean "much better".
Could I use намного instead of гораздо here?
Yes, намного прочнее means exactly the same thing. Both гораздо and намного mean "much" or "a lot" when placed right before a comparative word, and they are completely interchangeable here.
Why do прочнее and лучше not have a masculine ending to match the noun экран?
These are short-form comparative adjectives. Unlike regular adjectives, short comparatives are invariable, meaning they never change their endings to match the gender, number, or case of the noun they describe.