"He is tall, rich and good-looking, but he's not smart."

Translation: 虽然他是一个高富帅，但是他不聪明。

[Terence364703]

Because they left 'although' out of the English translation, there no incentive to use 虽然 here is there?

[Levi]

You are correct.
2018.07.09.

[MitjaSaje]

I agree

[Brettah31]

帅 shuài is perhaps better translated as "handsome".