This is the SLUB S5 fitness tracker HR. Operation has been confirmed. There are no noticeable scratches, but the box has some damage from being opened. Please purchase only if you understand that this is a used item. Please refer to the photos for details. The product will be shipped in an initialized state. It can be used in conjunction with a smartphone app. If you have any questions, please comment before purchasing. Thank you very much! ☆Please read the profile. Thank you for looking!☆ SLUB S5 fitness tracker with heart rate monitor and sleep analysis functions. - Brand: SLUB - Model: S5 - Function: Fitness tracker - Function: Heart rate monitor, etc. #S5FitnessTracker #FitnessTracker #Smartwatch #Sports #Exercise #HealthTracking #runmefit #HealthMonitoring