The GBD-H2000-1A9 is an advanced fitness tracker and performance monitor and comes equipped with a heart rate monitor step counter gyroscope that detects strokes and turns when swimming GPS and Bluetooth connectivity. This black and yellow smart watch features an impressive range of outdoor environmental sensors including an altimeter-barometer compass and thermometer. A step up from its predecessor the GBD-H1000 the GBD-H2000-1A9 new features include blood oxygen measurement cardio load status sleep measurement and analysis sunrise and sunset time display and moon age data. The Bio-based resin watch band is made from renewable organic materials that reduce environmental impact and facilitate the shift to a circular economy. The Smart Alarm function measures sleep state and selects the optimal time for a sound or vibration alarm. Its rechargeable lithium-ion battery can be powered by USB cable or solar power.