If you plan to buy a HomePod when they are put on sale in Spain, I advise you to read all the articles that I am publishing and it is that I do not stop using the Apple speaker every day to be able to squeeze its operation and to be able to tell you all its functions as well as how I am managing its protection against premature wear.
As with other touchscreen devices, the HomePod has a plastic top surface that, while not a touchscreen itself, it does have a small internal LED screen that shows the Siri symbol in motion.
This surface recognizes the tactile pulsations of our fingers both in the central area and in the "+" and "-" controls to be able to raise and lower the volume by tapping on the surface. That surface is protected with a protective plastic that when you take the speaker out of the box and start using it, you remove it.
Therefore, that non-glass surface is exposed to dust and subsequently rubbed with our fingers, so if you want that surface do not go spoiling we must put a protector to the touch surface.
In the network of networks, of course, this protector is available and you can buy it in the following link. It is a transparent and flexible circular plastic protector that fits perfectly and at a price less than 3 euros.
Do not hesitate to ask for all the accessories that I have exposed to you to protect both the screen with what I have told you today and the outer textile lining, such as HomePod itself in case you want to transport it from side to side.