Introducing the TOZO S5 Smartwatch. Make clear calls directly from your watch with Bluetooth calling. Enjoy a vibrant 1.43-inch AMOLED screen. Monitor your heart rate, blood oxygen, and sleep with 80+ sports modes. Get up to 10 days of battery life with a 300mAh battery. With IP68 dust and water resistance, the TOZO S5 is ready for any adventure.