

OK, disregard those phone based ideas.
I read it as if you were looking for content that is outside of most phone based offerings (nasty psychologist created addiction loops etc.)
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Bike riding is excellent for a physical and mental reset. Rear-radars are a thing, beeping when a car is approaching behind from 150m.
Badminton is great too. Portable cheap nets are available with telescopic poles.
Boardgames are great for social mixing.
Probably find something you like from these: Innovation, Inis, Port Royal, Just One, or Scout.
Passage is a Zen simulation , which is a pleasant walk in an open-world, if that world is a line segment.
libregamewiki.org page (spoilers): Passage(2007)