Based on this product's specifications, here are some alternatives and similar models
Case Spigen Liquid Air Black Thermoplastic polyurethane Smartwatch
Summary description:
The Spigen Liquid Air Case is designed for smartwatches, made from durable thermoplastic polyurethane (TPU) in black. It offers reliable protection against scratches and impacts while maintaining a slim profile. The case is lightweight and easy to install, ensuring full access to all buttons and features of the smartwatch.