If anything is going to replace a smart phone, it's something without the need to carry a screen, yet still let the user witness an easily readable and interact

If anything is going to replace a smart phone, it's something without the need to carry a screen, yet still let the user witness an easily readable and interactable experience. Plus, I can't stand scraping a watch on my desk while at work. My phone is too big to properly fit in my pocket while I sit at my desk, so it's not on my body either.