The proliferation of mobile and wearable technology provides new opportunities for behavioral and social researchers. Using apps, sensors, and wearables allows for the collection of observational data (e.g., on location and movement, physical activity, social interactions, mobile browsing history and app usage) at high intervals and in real time. These data can augment or replace self-reports in surveys. However, implementing data collection using these new technologies poses multiple challenges, among others related to participant selectivity, (non)willingness to provide the data, ethics and privacy. In addition, data from apps, sensors, and wearables are not free from measurement error, and specific skills are required to handle and analyze these data. This webinar provides an overview of the currently available technology and review how they can be implemented in existing surveys. There is discussion practical issues of collecting data from apps, sensors, and wearables including best practices of consent and privacy protection when collecting these types of data.