Watches and wearable things are just the tip there. The issues with implants is that they are 100% against the Hippocratic oath. No doctor would ever do one if you are healthy. Implants are a long way off, and wearable enhancers may ease the road to them, however a new ethical system for doctors, or an extension of doctors without such oaths, would be required. Think about it for more than 30 minutes, it gets heeby jeeby real quick.
Before implants one could build sense enhancers that are just worn, not "plugged in". Running shoes are "capability enhancers" that don't involve a doctor unless you're running professionally. Glasses usually involve a doctor but you can buy simple ones without seeing an ophthalmologist.
A simple device that would buzz on your skin isn't "medical".
Watches and wearable things are just the tip there. The issues with implants is that they are 100% against the Hippocratic oath. No doctor would ever do one if you are healthy. Implants are a long way off, and wearable enhancers may ease the road to them, however a new ethical system for doctors, or an extension of doctors without such oaths, would be required. Think about it for more than 30 minutes, it gets heeby jeeby real quick.