Are the "vibration watch" and zoom options not compatible with each other? It seems odd that one would have to choose between them, but both are activated by a triple tap.
Thank you for reaching out. I can certainly understand the importance of having both feature accessible on your device. The watch vibration is just turned on under advanced settings in the accessibility whereas the zoom is triple tap to engage. Give this guide a try for more information on the accessibility features on your watch: https://www.samsung.com/us/support/answer/ANS00080311/
