Requires a compatible iPhone or Android smartphone (specific device is included below) Spire measures your breathing and provides feedback for a more focused and calm day. When your breathing indicates tension, a gentle notification reminds you to stop and take a deep breath. The included smartphone app can guide you in short, simple exercises or mini-meditations to increase focus, calm and productivity. Clip the Spire stone unobtrusively onto your pants or bra to track steps, calories and respiratory patterns. Incorporates wireless charging, up to 7-days of battery life and thoughtful washer-proof design. NOTE: Spire measures breathing to give you insight into your state of mind. It is not a mood tracker or medical device.