The Fitbit Versa 2 Smartwatch in black is the perfect activity tracker for indoor and outdoor use. It features a variety of sensors including infrared, SpO2, accelerometer, optical bio-tracking, and ambient light to provide accurate measurements of your heart rate and activity levels. The watch is made with a combination of aluminum and silicone materials, making it both durable and comfortable to wear all day long.This activity tracker is compatible with both iOS and Android operating systems and comes with a mobile app for easy tracking of your fitness goals. The Fitbit Versa 2 Smartwatch has a display size of 1.34 inches and provides measurements of time, heart rate, and more. With a battery life of up to 6 days, you can wear it for extended periods without worrying about charging. Whether you're hitting the gym or going for a run, this fitness technology is perfect for anyone looking to stay active and healthy.