I got a 4-series clock with a Nike bracelet in early April, and the first thing I did was check the activity ring and what they were doing.
… And then I saw the achievements …  They look awesome and keep my perfect knit, both reasons to get my stupid ass from the Playstation or computer at work. I love the sense of accomplishment (I know it's an old meme but what he does) that I get after seeing the three rings light up on my screen and telling me my stripe is 30 days to this day.
If it wasn't For the small, impenetrable pieces of metal, I wouldn't even get the motivation to get out, let it go for a race or go to the gym.
So if someone you know loves love and wants that clock, show them this post.