Hello everyone User on Alsum Qassim, Buraidah The bracelet has an app that tracks sleep, calories, exercise, steps, and everything else, like the Woop bracelet that requires a subscription. Shipping: One unit lasts a month if all features are activated. If some are deactivated, it can last two months without a charger. Comes with the box, charger, and two black bracelets: one fabric and one regular.