For the Xiaomi? Yes. They’re pretty well-made, they’re very cheap, but they are not certified to the same protocol that SmartThings uses. They’re really only intended for use with their own Gateway. There are some community members using them successfully, but at least twice after a SmartThings platform update they’ve stopped working altogether for a little while. There’s no guarantee that won’t happen again since they aren’t certified. But again, very cheap.
You can talk to people who are using them in the following thread: