I bought the fitness tracker February 2019 and gives me the info I require such as colorie,km and kcal. The wraistband is simple and looks like a ordinary bracelet. The setup is easy to do with its application and keeps you updated on your progress.I am a beginner and I wanted a tracker which had the basic fonctions and quality versus price is great. When setting up hours for sleep, the tracker counts hrs from 12 midnight ex: 7 hours sleep, the tracker will shut down at 12 midnight and start counting at 7AM. Charging is easy, just plug the tracker in a USB portal and the charging is fast. Data Transfer is automatic from bracelet to application on my cell with WIFI. The bracelet will keep the stats and update later the application on the cell if the cell is not within distance. Very happy with my purchase and recommend for future buyers and beginners.