Samsung Electronics GmbH Hello, The well-being and safety of our customers is our top priority. Samsung complies with legal requirements and standards and also voluntarily refrains from using certain potentially critical substances in accordance with the precautionary principle. For example, all our mobile phones have been free from brominated flame retardants, PVC and plasticisers (known as phthalates) since 2010. We check compliance with legal and voluntary requirements by systematically selecting our suppliers and carrying out additional chemical analyses in our own laboratories. This ensures that our products offer a safe and pleasant user experience. Best regards from Eschborn Your Samsung Service Team

Unfortunately I can't answer that. It is best to enquire at Galaxus

Samsung's nitrile rubber sports band (HNBR), with product code ET-SNL31LBEGEU, is compatible with some sizes of the Galaxy Watch 7, but not all. - The strap is specifically designed for the 40mm and 44mm models of the Galaxy Watch 4, 5, and 6, and is also compatible with the same sizes of the Galaxy Watch 7. However, the strap will not be compatible with the Galaxy Watch 7 Ultra model, which has a different attachment system.