pinetime

Known as an open-source smartwatch, Pinetime is a product of PINE64. It stands out for its ability to run custom-built open operating systems, providing users with a high degree of customization. The device is equipped with a heart rate monitor, a capacitive touch IPS display, and a 64MHz ARM Cortex-M4F processor. It also boasts a week-long battery life and supports Bluetooth 5 and above.