Spire Stone | Activity and Stress Management TrackerOS Spire – Discover CalmLike-new excellent conditionComes with wireless charging padCan hook to pants/pockets or braCan be used by men or women and with Android or iOs”The Fitbit for your mind” – ForbesThe world’s first stress and activity tracker, has an improved sleek design.Helps you keep in sync with your mind and body by measuring your breath patterns all-day and notifying you to sudden changes.When your breathing becomes rapid or erratic, the Spire Stone will send you a gentle notification with actionable next steps.