Gracefully crafted from 46mm solid aluminum and featuring a 22mm waterproof leather band, the ON - MA01-BLB sports an IPS 1.3-inch HD display and allows up to 3 days of use depending on usage. Easily access the Fundo Health app (iOS, Android, and the App Gallery) for calling, notification, and tracking features like heart rate and sleep monitoring, blood pressure, oxygen, ECG, pedometer, and more. Additionally, enjoy the anti-lost and phone camera connecting functions and stream music directly through Bluetooth.