The Kate Spade NWB $125 Fitness Activity Tracker in Black and White Polka Dot is a stylish and functional device for tracking indoor and outdoor activities. With a high display resolution of 641 x 640, this activity tracker features Bluetooth connectivity and a battery life of more than 7 days. It is designed for women and specifically for running and jogging, making it a great companion for fitness enthusiasts. The black and white polka dot pattern adds a touch of personality to this sleek and modern device.