Based on this product's specifications, here are some alternatives and similar models
Smartwatch Apple Watch Ultra 3 GPS + Cellular 49mm Black Titanium Case
Summary description:
The Apple Watch Ultra 3 features a 49mm Black Titanium Case, OLED display with 422 x 514 resolution, 64GB flash memory, and is waterproof up to 100m. It runs on watchOS 11 and includes GPS and Wi-Fi connectivity, making it ideal for outdoor activities and fitness tracking.