US Patent 9977488 Electronic device with smart power management system

Described herein are a method and a system for smart power management in electronic devices. Specifically, an electronic device with multiple processors is designed for fitness and health monitoring of a subject. When the device receives a task, it determines whether the task is high power consuming. In response to the determining that the task is high power consuming; the device enables a high-speed processor for the task. Otherwise the device enables a low-speed processor to perform the task.