Can the strap of Beidou positioning watch be replaced? Can I color freely? Which one has it? urgent

There are many GPS watches on the market. Beidou positioning watch has seen a piece called Beidou heart in Gome store before, and the strap can be replaced. There seem to be 6-7 colors. My daughter chose a pink watch, light pink, a bit like jelly and fleshy. I like it very much.