As an emerging wearable device, a number of commercial smartwatches have been released and widely used. While many people have concerns about the battery life of a smartwatch, there is no systematic study for the main usage of a smartwatch, its battery life, or battery discharging and recharging patterns of real smartwatch users. Accordingly, we know little about the current practices for battery use and management of smartwatches.
To investigate this, we collected battery usage data from 17 Android Wear smartwatch users over a period of about 3 weeks in January to February 2015. We targeted Android Wear smartwatches because they are programmable and widely used while they support many smartwatches. An in-depth analysis of this data is presented our paper.