Fitbit vers 4 new in unopened box This Fitbit Versa 4 Fitness Smartwatch is perfect for those who want to keep track of their fitness routine. With features such as heart rate monitoring, distance tracking, and calorie counting, this activity tracker is a great way to keep your fitness goals in check. It is made from durable aluminum and has a sleek black color that goes well with any style. This Fitbit Versa 4 Fitness Smartwatch is suitable for both indoor and outdoor activities. It has a powerful battery that can last up to 7 days, making it perfect for long trips. The sensors included in this activity tracker are radar, GPS, and ambient light. The Fitbit Versa 4 can also provide you with information such as time, resistance level, watts, and much more.