The movement will show red. Apple's smart wearable watch iWatch is very accurate and is a fashionable sports watch. What you actually want to say is that among many sports watches, it has the most sense of grade and technology, but in front of professional sports watches, it is a bit unprofessional, such as Jiaming and Songtuo, which have outstanding performance in the field of sports watches. The red circle and the activity circle are the calories of daily activities, which will be displayed as long as you exercise.