Based on this product's specifications, here are some alternatives and similar models
Lens Protect HMD Pulse+ camera lens protective film 4 pcs by 3MK
Summary description:
Camera lens protective film set for HMD Pulse+ by 3MK, includes four precision-cut protectors designed to cover and shield smartphone camera lenses from scratches, dust and minor abrasions. Thin, transparent films preserve image quality and touch sensitivity while providing a replaceable layer of protection for everyday use and travel.