Abstract Fitness tracking bands are systems applicable to the ubiquitous monitoring of human health. These systems connect to the body for analyzing the body’s metabolism effects and record one or more physiological parameters. The recorded data is then transmitted to a base station, which may be a PC, smartphone, or other electronic embedded device. To understand the data, a user has to be acquainted with the metabolism effects of the body, but in most the cases the user is not. Moreover, the devices use secondary methods to measure metabolism effects, which do not give proper analysis of the body during a workout. In addition, a few of the devices are wired or are made up of smart fabrics, which make the user uncomfortable and increase the cost of the system. The designed system must have some important features for users, such as being easy to use, long lasting, and socially acceptable. The power consumption of the system is also a critical factor for realizing all of the aforementioned features of the system. The physical size of the battery required determines the device size and operating lifetime, which in turn affects its ease of use and sets the usability index of the device to an acceptable level.