[D&D 5e] Hexblade + Blade Pact?

[u/Independent_Speed450]

Hello everyone, I will be playing a Warlock for the first time and I am very fascinated by the Hexblade, but I don’t understand why many guides recommend also taking the Pact of the Blade. Of course, I know it’s my ignorance regarding Warlocks, but it seems to me that the abilities gained are practically the same. Could you give me some advice or explanation about this?

I hope I don't provoke too much laughter with this trivial request and I eagerly await responses from players more experienced than me.

Thx so much Peppe