so i know i walk more that the average person since i don't own a car or like taking the bus but mine (i have the iPhone 4) says that i walked 22000 steps today which seems like a pretty big overestimate (I'm 5'7 if that makes a difference)
also if i were to walk this many steps, do i still need to do "formal" cardio exercise like running etc?
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How accurate is the iPhone health steps counter?