Try out watchfaces on device before buying

A competing product recently launched a feature: you can try out a watchface before buying it. It's good, because the display brightness, the bezel, etc. can affect how the watchface like like in watch, and it might turn it that it's not great. E.g. the Fossil Gen 5 watches have a black ring around their display, and the watch have a low brightness of you set it to automatic, so complicated watchfaces don't look good on it, even though they are beautiful on the phone.