11 Devices For Hacking Your Health — 10. Spire11 Devices For Hacking Your Health — 10. Spire

Spire

 A unique idea among wearable trackers, Spire focuses almost entirely on breathing. A sensor that clips onto your clothing detects body position, activity, and breathing using proprietary algorithms and can notify you of whether you are “focused, tense, or frazzled” via an accompanying smartphone app. The device can alert users throughout the day, reminding them to take deep breaths, resume activity, or take other action to reduce their stress levels.