Hello, I am new to this world of tiny circuits.  I just ordered a SoC for a home project to monitor a bird feeder and want to make a wearable that it can communicate with.

The basic idea is that the wearable simply vibrates when the SoC sends a signal through bluetooth. What components would you suggest I get to create my own wearable?  It needs bluetooth and a vibrating motor, what else?.

I saw the make your smartwatch project tutorials but I don't want a screen or the other stuff.

Thanks you