The Livup Smart Ring Health Tracker in black, size 10, is a new in box sealed activity tracker perfect for unisex adults looking to track their fitness goals. With a display resolution of 240 x 240, this ring provides accurate heart rate monitoring along with features such as multiple sport tracking, wireless Bluetooth connectivity, and smartphone compatibility. The long battery life of more than 7 days, water resistance, and set goals functionality make it a versatile and convenient tool for indoor and outdoor activities like gym training, walking, running, and jogging.