Do i need a smart tv or not?

I would like to buy a second TV, I have a Smart TV in the living room and my question would be whether I can buy a TV without Wi-Fi and still use streaming services, such as netflix or Amazon prime. I already have a Vodafone box because I have to watch TV through it in the living room.

Also works with a fire TV stick. He needs Wi-Fi for this.

There are all sorts of boxes and TV sticks, for example:

Fire TV, Chromecast, Android TV, …

And how does the stick get Wi-Fi if the television doesn't have one?

You plug it into the TV and then you can access the menu from the stick. There you can then set your WLAN.