Switchbot "the bot" works with bluetooth.. In order to get it to work with hubitat you do need the hub.. That provides the Switchbot (Bluetooth) to cloud to hubitat connection.
I have setup this exact thing with our coffee maker to turn it on and off using hubitat automations, google hubs, etc.
I also have their curtain and door lock products.
There is a great thread and driver support with all things switchbot here: SwitchBot gets an open API!
