Currently there are 18 native Wideangle Prime lenses for Panasonic S5 II X and all of these lenses are autofocus (AF) type.
S5 Mark II X also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on S5 Mark II X.
Since Panasonic S5 II X has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 12 Wideangle Prime lenses with Weather Sealings.