I'm trying to work out which would be the best gps watch to buy for my DS. He is nearly 11, I've just started letting him venture out with his friends. One of his friends has one of these and it allows 3 sos call numbers to be stored. However apparantly his friend's watch was quite tricky to set up etc. I don't want him to have a phone until he starts secondary school next year and I think this will fill the gap between then and now really well. So any recommendations gratefully received!