I think this will be the next frontier for wearable tech. Smart watches are part of it, maybe even a smartwatch with some buttons that you can feel so you can control what you see in your AR glasses. At least until we see wearable contact lenses.
The phone becomes the main device, but these peripherals will enhance your use of your phone. Imagine being able to look up words you might not know when having a conversation in live time. Or seeing where the bathroom is in any building.
I'd like to know why you're being downvoted too; I've thought about this very thing for a while now. Everyone right now runs around with the head tilted down so they can look at their phone (which is supposedly causing us to grow bone projections on the rear of our skulls). It would be much better to have eye implants so we can see information in real-time from our mobile devices, even as we walk around. Like you said, it would be really handy to see a map while you walk in a building, showing you where the bathroom is, or to help you navigate while you walk in a dense city, instead of having to pull out your phone and look at it.
Yeah, and to be fair, your phone wont be ditched, it will still be useful. Nobody will force you to do buy any of this tech, it would be useful though. I've heard of contact lenses eventually doing the same and I fantasized about it a decade ago long before I became a Software Engineer.
The phone becomes the main device, but these peripherals will enhance your use of your phone. Imagine being able to look up words you might not know when having a conversation in live time. Or seeing where the bathroom is in any building.
Edit: If you disagree at least tell me why.