The B57 Smartwatch, also known as the Hero Band 3, is a budget-friendly fitness tracker offering a range of health and activity monitoring features.It boasts a 1.3-inch IPS LCD touchscreen with a 240×240 pixel resolution, providing clear visuals and a user-friendly interface.Powered by the NRF52832 processor and Bluetooth 4.0 connectivity, it ensures stable performance and compatibility with both Android (version 4.4 and above) and iOS (version 9.0 and above) devices
