Fitness device that measures heart rate and calories. - Brand: adidas - Model Name: fit smart - Functions: Measures heart rate, calories, pace, distance, and stride rate - Size: L - Accessories: Charging dock - Color: Black Thank you for viewing. Although it is new and unopened, Since it is mainly sold as a used item, please consider it as a junk item. Please make your judgment based on the photos and text. Most of them have no problem with use, but please understand. Please be sure to read the profile before purchasing. To prevent replacement, no claims and no returns are accepted. Please purchase only if you understand that it is a used item. Depending on the item, it may be possible to lower the price, so please consult with us. We also have various other items for sale, so please feel free to take a look at our page.