if mobile use slider for featured products

I'm watching the most successful competitors
They 're using 1. individual shop system (unknown) and 2. Shopware.

At desktop I can compete with both but at mobile they put featured products within sliders.
This would be an improvement because I see the big boys are doing it this way.

To add a feature wish list is:
if mobile, then display featured products within a slider.

The reason I mentioned was wrong.
It is not because the competitors are doing it.
It is because I think it is a improvement at mobile view - and my big competitors are doing that.

What I see needs to be done:

1. wrap featured products within a slider
2. PHP rule if mobile, then load the slider, else load the "classic" centeredcontentsproducts within a grid.

See -> sip-scootershop.com