The rapid growth of the Information and Communication Technology (ICT) sector has led to escalating environmental and social impacts. This study develops and validates the Sustainable ICT Device Acquisition (SIDA) framework and tool, incorporating a Supplier Selection Questionnaire (SSQ) and Sustainability Guidelines to address these challenges. Employing a mixed-methods approach, we identify key barriers and enablers to sustainable ICT procurement. The proposed SIDA tool operationalizes the framework, empowering decision-makers with data-driven insights and comprehensive sustainability information. Workshops with industry practitioners and academic experts validate the tool’s potential to raise awareness, streamline supplier evaluation, and enhance decision-making in alignment with sustainability goals. This research contributes a theoretically grounded and empirically validated framework and tool, promoting responsible ICT procurement decisions.