Does your $6.94 watch from Wall-Mart keep track of your calories consumed, your miles run, or your steps? How about your heart rate? Can it give you directions to catch the subway and what level the train you need is going to be on? How about which bus to take to get to the Movie theater on time? Can you receive your messages on your $6.94 watch from Wall-Mart? How about messages? Does it answer your queries about your stocks you are invested in without bothering the people around you? NO? Why not? Does it warn you of upcoming appointments in time to get to them? If not, why not? How about phone calls. . . does it tell you who's calling so you can decide whether it's important enough to excuse yourself from the room to answer it without digging out your phone? No, why NOT? Oh, it's just a clock.
A $500 computer and a $5 alarm clock both tell time. . . but there's a world of difference between that computer and that alarm clock. One only tells time and wakes you up in the morning. The other can do that and a lot more.