Remote Control?

Trust has this very nice wall-mountable and detachable zigbee Zyct 202 remote control.

What I like about it is that it mounts to the wall but can be detached, so I would normally have it next to my exit door, but also detach it to use as a remote.

Unfortunately it does not work with smartthings.

Are there any similar products zigbee or z-wave which work with smartthings?

There are quite a few options. Check the buttons and remote FAQ (this is a clickable link). Then if you have any follow on questions on any specific device, go to the thread linked in the post about that device and you can talk to people who are actually using it.

GE has also announced a new line of zwave remotes which looks similar to the one that you linked to, but they are not due to be released until the summer.