ABSTRACT
The COVID-19 pandemic has given rise to a different learning paradigm than before, from offline learning to online learning. This paradigm is, of course, still popularly used today even until the pandemic ends in the future. The learning paradigm in question is the online learning method. Online learning method not only provides convenience for students or educators but also creates problems that are very interesting to observe. One of the variables that become a problem in this learning method is the students' level of focus in online learning because online learning requires a lengthy screen time, and students use different devices. In this study, we will analyze the level of focus of students participating in online learning using smartphones and laptops. The problem with online learning is the different focus conditions due to differences in the use of devices, affecting the delivery of material received by students. The age limit of students used as the research object is 18-20 years. The approach used to analyze this problem is measure the level of focus using a brain wave recorder Electroencephalogram (EEG). As many as 25 students will observe their level of focus when participating in online learning using laptops and smartphones. Based on research conducted, the focus level of students using smartphone devices has an attention level of 54.72% and laptops by 60.80%. Laptop use has a higher level of attention by 5.76% than smartphone use. © 2022 IEEE.