A hot tub might look very similar to a Jacuzzi, probably because both have a lot of features in common. However, it does not mean that hot tubs and Jacuzzis are the same. A hot tub is a large tub that is filled with hot water, which can be used for communal leisure bathing.
The first hot tub was made in the 1970s, and it was made out of wood. However, most hot tubs now come with a whirlpool device, and other features such as massaging jets, MP3 audio system, LED lighting, Cushioned headrests, etc. In recent years, so many brands have started manufacturing hot tubs; one of these brands is Jacuzzi.
This shows that Jacuzzi is a name for a type of hot tub being manufactured by Jacuzzi. Jacuzzis also have most of the features that can be found in hot tubs. Since hot tubs are manufactured by different companies, there are some features that come with some hot tubs that will be absent in Jacuzzis.