ICT-infused lessons have been proven to significantly enhance the learning achievements in various disciplines specially during the pandemic. Most schools have adopted blended and remote learning. In Education 4.0, schools are relying on technology and among these educational technologies are Augmented Reality and Mobile-based Learning. These educational technologies are gaining popularity given their accessibility and advantages. So, the researchers designed and developed Augmented Reality-based learning Tool for Cell Biology and Basic Microscopy. The study aimed to assess the developed learning tool in terms of learning achievement and employed methods such as technology acceptance model for users and pre-post testing approach to assess learning outcomes. Findings revealed that Augmented-Reality based learning tools significantly enhance the learning achievement of students. Thus, the study suggests capability training for teachers on the use of such emerging technologies. Keywords: cell biology, education, augmented reality, educational technology