It's impossible it can run anything on its own, its an accessory, that's the point. The best use is typically just getting notifications. So you can see SMSes,

It's impossible it can run anything on its own, its an accessory, that's the point. The best use is typically just getting notifications. So you can see SMSes, IMs, whatnot. The fact is that 90% of the time it's more important to have read a message than to reply to it. It also saves you the trouble of having to remember to read something when you notice you've gotten a message but you can't check it just now 'cause you are busy with something else. That alone is a huge use case. Sure, it doesn't apply to everyone, but it applies to enough people that it justifies the product. And ultimately it is just a product not a way of life being imposed on humanity. If it doesn't work for you then don't use it. If you don't like sailing you don't have to buy a sail boat, but you also don't have to decry their existence either.