It seems that &quot;smart&quot; devices mostly give some data brain crack to feed upon rather than improve the actual outcome of any activity. When I got the Muse headband for measuring brain activity during meditation, it was fun at first, but it didn&#x27;t affect my meditation schedule. Before and after, my plan was always to just meditate more. I sold it shortly.<p>Similar with 23andme. Lots of personalized trivia about my genetics but nothing earth shattering or really actionable. It told me my race (whoa my parents weren&#x27;t lying to me) and said I had slightly above&#x2F;below average risk for many obscure diseases. Maybe it&#x27;ll be more useful with gene tailored treatments some day.