Based on this product's specifications, here are some alternatives and similar models
Apple Watch SE (3nd generation) Apple GPS + Cellular 44mm Starlight Aluminium Case
Summary description:
The Apple Watch SE (3nd generation) features a 44mm Starlight Aluminium Case, OLED display with 368 x 448 pixels resolution, and 64GB flash memory. It is equipped with GPS, Wi-Fi, and is waterproof up to 50m. The watch runs on watchOS 11 and comes with a Starlight Sport Band in M/L size. Ideal for fitness tracking and daily use.