Field BIM and its enabling Mobile BIM Technologies (MBT) are increasingly recognised for their role in improving collaboration and integration between project teams on construction sites. Very limited research about the development and applications of Field BIM and MBT is available in the literature. The few available studies have generally focused on specific types of MBT and their application on a single project or individual use cases. A framework to clarify the technical and business requirements of MBT is still missing. This paper is part of a wider research aiming to develop a holistic framework for MBT and Field BIM consisting of a requirements taxonomy, a benefits evaluation approach linking use cases to relevant performance metrics, and a project and supply chain performance analytics dashboard. This paper presents the findings about the technical and business requirements of MBT, which represents the first step towards the development of the requirements taxonomy.