I have to take medications several times a day and make sure I pick up my granddaughter at school. The meds must be precisely taken.  Carrying around a timer was awful, and annoyed others. I tried one vibrating watch from another company--it didn't even turn on when I received it. My vibrawatch is wonderful.  I can be at the movies, or anywhere, and my wrist buzzes. While able to work a computer and such, I am of a generation who doesn't catch onto technology easily. I went through the instructions and made an extra copy of them to be sure. It wasn't difficult. This is one of the most helpful things I've ever had.