This Fitbit Charge FB404 Activity Tracker in Black/Gray is a versatile device that can monitor a variety of activities such as cycling, running, and sports. It also features a sleep tracker and sensors like an accelerometer and step counter. The multi-sport device is compatible with iOS and Android and comes with a rechargeable battery that lasts 1.5-3 days.

The Activity Tracker is water-resistant, features Bluetooth, and has a mobile app for data review. The wristband also has a stopwatch, pedometer, clock, calorie monitor, timer, alarm, and average speed measurement. This unisex device with a plastic material build and a black color finish is an excellent choice for individuals looking to keep track of their fitness goals.