1. Excellent, I should live forever. 2. Good, some minor complaints. 3. Average, but I am OK with that. 4. Below average. 5. Poor, I could drop dead any moment.
4. I have COPD and a blood clot in my lung but I feel fine and am able to get out and do things with not much problems. My doc tells me that he thinks I am doing fine.
Attaching it to my cat would be counterproductive. But it gives one a positive attitude. "Wow! I didn't even know a Fitbit could go that high!" And a positive attitude is the first step to bettering oneself (and that step can be traded in for 10,000 steps per day). See? Exercise is all in the mind.