CASIO GBX-H5600-1JR Bluetooth Sports Watch with Heart Rate Monitor Accelerometer Shock Resistant```html Product Highlights A new model from G SHOCK's sports line "G LIDE" is here. It features an optical sensor for heart rate measurement and an accelerometer for step counting, making it suitable for activities by the seaside as well as daily workouts like running and walking. It supports a wide range of condition management with training analysis, recovery analysis based on sleep, breathing exercises, and blood oxygen level measurement functions.