The Apple ecosystem is so comfortable and versatile that even the most ordinary user can make a professional presentation using the company’s products.
A minimal set may consist of one iPhone and the projector, but much more interesting presentations, flipping through slides with the Apple Watch, or use the tooltips in presenter mode on the iPad.
In order to make a presentation, you will need any of the listed products of the company: computer on macOS, iPad, iPhone, and Apple Watch Keynote.
Now one of the devices will act as a remote control for presentation.
You can also use the Keynote app on the Apple Watch for the transition between slides.