ION Bluetooth Smartwatch with app Black – ION is the smartwatch for your daily activities. With its long-lasting battery that guarantees 5 days of autonomy, it allows you to monitor heart rate, blood pressure, oxygen, stress, sleep, and all physical activities through the optical sensor on the smartwatch. You can also receive all notifications to stay connected by linking it to the app downloadable from the respective iOS and Android stores. ION features a 1.83″ HD IPS Full Touch LED display.