Vigor: Red and blue are common LED lights in electronic watches. Red is usually considered as a color full of energy and passion. For some people, red LED lights may make them feel more motivated and energetic, especially on watches worn during sports or fitness. In addition, in the dark environment, red LED lights are also easier to be recognized and seen.
Calm down: Blue is calm and rational. Different colors can also affect people's psychology and emotions. For others, blue LED lights may make them feel more calm and relaxed, especially when they need to think calmly or relax. It may be more beneficial to use blue LED lights on watches. In addition, blue LED lights will be more conspicuous during the day or in a well-lit environment.