Featuring a rugged design, the FireBoltt Sphere Smartwatch is ideal for outdoor use. So, if you are an adventure enthusiast who enjoys outdoor activities such as hiking, camping, and mountain biking, this smartwatch is a musthave for you. Featuring an up to 4.064 cm 1.6 round display that offers up to 400x400p high resolution, this smartwatch enables clear onscreen visuals for easy viewing. With this smartwatch, you can monitor your heart rate during exercise or throughout the day, track your sleep cycles for enhanced rest, and keep an eye on your breathing activity to ensure optimal health.