Fitbit Sense Advanced Activity Tracker Smartwatch Midnight Blue FB512 Small S - GENUINE FAST SHIPPING Fully Tested! Fully functional Unit is in good condition (see pictures). This unit was tested and works excellently with my Samsung Galaxy (Android Compatible) and iPhone (IOS Compatible) phones (also works with other models). Comes with a USB charging cable. May show some cosmetic wear from normal use (refer to the detailed pictures), but overall this unit looks and works great! Please refer to the pictures for the condition of the item. The Fitbit Sense Advanced Midnight Blue FB512 Activity Tracker Smartwatch in Small size is a high-quality fitness tracker designed for unisex adults. It features a sleek black color, stainless steel material, and offers various measurements such as heart rate, speed, time, distance, and calories. With a battery life of up to 6 days, this smartwatch provides accurate data for indoor and outdoor activities like gym training, yoga, and running. It also includes features like Bluetooth connectivity, GPS tracking, alarm, clock, and a personalized calorie and heart rate monitor. The Fitbit Sense Advanced is a reliable and stylish accessory for those looking to track their health and fitness.