The NIB Whoop 4.0 Fitness tracker band comes with a 12-month subscription included, making it a convenient and comprehensive option for tracking your fitness goals. With a high display resolution of 1920 x 1080, this activity tracker provides detailed measurements in both decimal and imperial systems. The black plastic band is suitable for both indoor and outdoor activities, and it offers features such as a calorie monitor and heart rate tracking. Compatible with iOS and Android operating systems, this unisex adult device has a battery life of up to 5 days and comes with a 2-year manufacturer warranty.