I think it depends on what the intended use is. A watch would be a waste of time. But I suspect this device will primarily be used for easily composing and vi

I think it depends on what the intended use is. A watch would be a waste of time. But I suspect this device will primarily be used for easily composing and viewing text messages without taking one's phone from one's pocket/purse. I expect texting will soon be the dominant form of communication.