The iKALL W4 helps you check your health in a simple way. It shows your heart rate, blood pressure, blood oxygen, calories, and daily steps. It even has ECG and sleep monitoring to help you understand your body better. With many sports modes, you can track different activities easily. The big display makes every detail clear, and the watch stays comfortable on your wrist all day long. https://www.ikall.in/product-page/i-kall-w4