Getting Started with Z-Wave - Opinions and advice required (Australia)

Welcome! It’s great that you were doing your research ahead of time, that can make a huge difference in your satisfaction with the overall project.

Z wave itself is just used for the switch to communicate wirelessly with your hub so that it gets the on, off and dim commands. The action of what happens once that message is received is pretty similar to nonnetworked devices except the dimmers are digital rather than analog. So if anything zwave switches tend to be a little less effective as an actual dimmer switch in that they tend not to dim as low as the analog switches.

The following thread (this is a clickable link) will give you a good idea of what The various Switch features are and why you might care about them. Different things will be important to different people. The light switch discussion starts right around post 40.

In your case, I would look at the newest line of Leviton zwave plus switches. They have worked very hard on the dimming issue and have improved the range of dimming with the newest switches. You should be aware, however, that these switches do cost more than some of the other brands.

Another alternative, of course, is not to use zwave for your light switches, but rather to use Lutron Caseta. These have an official integration with SmartThings and are very well engineered. They also have a wider range of dimming than most of the Z wave switches. They are mentioned in the same thread above.