The gamification of fitness is cool, but I can't do anything with this reward besides bragging rights and feeling better. At least give me 15% off a watch band or 10% off of a new watch...something that impacts their sales. How is this not a thing?
Maybe because the benefit in keeping physically active IS THE reward:
Unclogged arteries,
Healthier heart function or more efficient heart function for life,
Better moods, deeper sleeps that are more restful for the mind and body,
Beer thinking or clearer thinking process - again lifetime longevity,
Better eating habits,
Better mind muscle coordination,
Happier mindset, better personal thoughts of one’s self,
Better focus of the mind,
Better time management of your life, leading to better work/life balance,
Etc etc
Although a good idea, what thresholds and how often would be key along with how metrics are achieved based on one’s ability and range of motion or ability for some and not other exercises, age, etc.
I don’t think Apple wants to be perceived as pushing a customer too far to get 10% discount on the latest iPhone that’ll lead a desperate hunger person to hospitalization in this regard.