 This narrative review aims to provide a comprehensive overview of current medication adherence monitoring technologies and propose a set of technology assessment criteria to support their development and adoption. The study identifies various technology applications for monitoring medication adherence, including electronic pill bottles or boxes, ingestible sensors, and motion sensor technology. Technical features vary by technology type, with common expectations for unobtrusiveness and convenience of use. Most technologies provide real-time monitoring of medication taking behaviors but rely on proxy measures of medication adherence. The study identifies 28 technology assessment criteria organized into five categories, development information, technology features, adherence to data collection and management, feasibility and implementation, and acceptability and usability. These criteria can be a useful tool for guiding the development and selection of relevant technologies to improve medication adherence outcomes. This article was authored by Madeleine Mason, Yuman Cho, Jessica Rio, and others. We are article.tv, links in the description below.