The Move Ring on Apple Watch is the calculation of “Active Energy” which is the amount over your BMR your activities bring you. The two together are your total caloric estimation for the day, also known as TDEE, total daily energy expenditure.

Move. The Move ring shows how many active calories you've burned so far. Complete your daily Move goal by burning active calories every day. Active calories, unlike resting, are ones that you burn by standing or moving around.

Active calories: Active calories are the calories you burn when you work out or simply walk. Total calories: As the name suggests, it is a sum. Specifically, the sum of active calories and calories at rest. Those that your body burns naturally, even when you're watching a movie on the sofa or sleeping.

The Move goal should be the amount of active calories you aim to burn daily through movement. In this case, 500 calories would be an appropriate Move goal for weight loss. You'll need to burn 3500 calories more than you eat to lose 1 pound.