Casio Tactical G-Shock Multi-Sport Watch Biomass Plastic 145-215mm. This timepiece is packed with features that make it stand out from other sports watches. Along with a heart rate monitor and GPS this watch boasts an array of features to enhance athletic performance. Using optical sensors to provide heart rate measurements an accelerometer to count steps and a gyroscope to improve swimming sessions athletes can accurately monitor their training sessions. Moreover the production process was environmentally conscious and the Bio-based resin band is made from organic renewable materials. This sustainable material helps to reduce the carbon footprint. In addition the GBDH2000-1A black watch is rechargeable via USB or solar making it an eco-friendly choice and ensuring athletes can get the most out of it without worrying about changing the battery. If you're looking for an optimal analysis of your workout the Polar smartwatch library analyzes workouts and post-sleep recovery. From running and cycling to swimming and anything in between the G-SHOCK MOVE GBDH2000-1A is the must-have accessory for all sports enthusiasts looking for a serious kit that can handle any level of activity. Specifications for Casio Tactical G-Shock Multi-Sport Watch: Manufacturer: Casio Tactical Application: Sports Gender: Unisex Illumination Color: White Band/Strap Color: Black 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 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 Multi-Sport Watch Casio Tactical GBDH20001A: G-Shock Multi-Sport Watch Biomass Plastic 145-215mm