Hello all, I am in the process of deciding which apple watch to purchase, however with all apple products there are so many different models which makes it very confusing to someone who has little or no knowledge of them. Could someone tell me the differences and the best value in your opinions ect, I believe there is SS and sport? And also series 1 and 2, if someone could list all of the differences and such it would be very much appreciated as I have no knowledge on any of them. Thanks in advance! P.s. I don't have a budget as such but I obviously don't want to be spending a ridiculous amount like £500+.