For what its worth EveHome did a while ago - now a long while ago announce a HomeKit compatible version of the Yale ENTR lock.
See - https://www.macobserver.com/news/product-news/elgato-homekit-door-lock-smoke-detector/
Since HomeKit supports both WiFi and Bluetooth connectivity and EveHome aka Elgato have historically used Bluetooth for their other HomeKit products this has some logic.
I just checked and there is no new news regarding the availability of this lock.
As the Yale ENTR is a smart Euro Profile style lock you could consider getting an alternative one which is compatible. Nuki would be my choice.
There is a Nuki app for Smartthings.
See - [RELEASE] Nuki Manager for Nuki Smart Lock with Automatic Discovery, Install and Real Time Updates