The Fitbit Charge 4 Charging Cable is specifically designed for the Fitbit Charge 4 model, featuring a sleek black color and durable plastic material. This charging cable is perfect for gym and training activities, ensuring your Fitbit device stays powered up for all your workouts. The compatibility with the Fitbit brand and model makes it an essential accessory for fitness enthusiasts looking to keep their Fitbit Charge 4 charged and ready to track their progress in fitness technology.