Augmented reality, which will be good and bad. It’ll be terrible from a privacy POV. Every person you see you will be able to dig up their entire online persona just from facial recognition software. All the stupid stuff you posted online in the 90s will be available to everyone who sees you in person. You go to walmart and a bunch of kids will be laughing at you because you said something stupid 20 years ago and they are reading it.
Augmented reality will be kindof useful though, like a wikipedia overlay over your real life view.
Aside from augmented reality (which is the next big thing in personal electronics in my view), there will be much better medical diagnostics via personal electronics. People will measure their BP, blood glucose, sleep patterns, and other health parameters on a 24/7 basis.
Another aspect of augmented reality is improved socialization. There was a short blurb a few years ago about a small electronic device people used when doing speed dating. The device could measure levels of interest based on things like voice tone, inflection, etc. And just by using voice it was able to give people a good idea who liked them and who didn’t. Imagine you are talking to a girl and the augmented reality display says ‘she doesn’t like you’ then you talk to another and it says ‘she likes you’, then you know which one to keep talking to and which one to avoid. Augmented reality will be constantly giving you feedback about the emotional states of others (this person is angry at you, this person is sexually attracted to you, this person is in pain, this person is sad, etc). It will make socializing a lot easier for people who can’t pick up on clues.
Even now, you can get a pretty good idea on a person’s sexual orientation and political beliefs just by looking at facebook (even if they don’t mention these things directly) based on who their friends are, etc. So it’ll be much harder to keep secrets, or hide your emotions and motivations from others.
24/7 advanced biological and health maintenance
A constant stream of advice and information based on your situation
Advanced situational awareness