Based on this product's specifications, here are some alternatives and similar models
Band Apple MXM23ZM/A Smart Wearable Accessories Black Fluoroelastomer
Summary description:
The Apple MXM23ZM/A band is designed for smartwatches, made from durable black fluoroelastomer. It fits wrist sizes from 140 to 190 mm, ensuring comfort and a secure fit. Ideal for everyday wear and various activities.