Casio Tactical G-Shock Black/Yellow Multi-Sport Watch Biomass Plastic 145-215mm. This sleek black and neon yellow watch is specially designed for modern athletes who take their workouts seriously. 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 unique design of the Casio G-Shock GBD-H2000-1A9 makes it an ideal option for eco-conscious athletes. Casio 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 your 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 which means you'll never have to worry about running out of juice. So whether you need a GPS watch for running an all-inclusive watch for cycling or a watch to track swimming laps the GBD-H2000-1A9 is fully equipped for any and every sport you love. Specifications for Casio Tactical G-Shock Black/Yellow Multi-Sport Watch: Manufacturer: Casio Tactical Application: Sports Gender: Unisex Illumination Color: White Band/Strap Color: Yellow Case Color: Black Case Material: Bio-Based Resin Case Diameter: 53 mm Wrist Band Type: Strap Illumination Type: LED Water Resistance Level: Waterproof Water Resistant Mark: 200 m Weight: 2.22 oz Additional Features: 145-215 mm Features of Casio Tactical G-Shock Black/Yellow Multi-Sport Watch Activity modes to support multiple sports - The watch supports eight different activities including running biking and swimming. Select an activity with the touch of a button to track and display a variety of measurements in real time. Training and sleep analysis to check your results and improve effectiveness - The watch displays current performance and physical condition based on analysis of various data measured by the watch in an easy-to-understand format. Analysis utilises the POLAR library a database that is known for heart rate-focused training analysis. Train efficiently and effectively with scientifically supported highly reliable analytical results. Watch mode for managing daily health - The watch mode helps manage health by measuring heart rate and keeping track of daily steps and physical activity. Also measures blood oxygen levels. App integration function to easily set goals and manage progress - Use the app to easily manage data tracked by the watch. Take advantage of the easy-to-understand display of daily activity logs training status and other information to stay motivated and exercising in the way that is best for you. Helps improve exercise performance and a health-conscious lifestyle. Solar-assisted charging - Use USB charging for training functions such as GPS tracking and heart rate monitor as well as smart functions such as notifications and step tracker. Time display is powered solely by solar charging even when battery runs low. Super Illuminator for readability in the dark. Package Contents: Casio Tactical G-Shock Black/Yellow Multi-Sport Watch Casio Tactical GBDH20001A9: G-Shock Black/Yellow Multi-Sport Watch Biomass Plastic 145-215mm