With the change in technology, changes in education were to be expected. Digital classbooks are the new present that primarily allows using information more easily, using multimedia content and attract students' attention. Problems with introduction of digital classbooks are uneducated teachers and insufficient school equipment. Since 2015, the program "e-Schools: Complete informatization of school business processes and teaching processes for the purpose of creating digitally mature schools for the 21st century" has been run in Croatia and one of the goals is to solve problems listed before. In this paper are analyzed digital classbooks for the 4th grade of primary school by three publishers: Alfa, Školska knjiga and Profil Klett. With a display of printed classbook, they offer various other options depending on the individual classbook and its publication. Beside the features that digital classbooks have, such as adding notes, highlighting text, setting up pages, searching for the contents or content tables, the interactive contents found in digital classbooks were also analyzed. For example, additional photos, videos, sound clips, notes, presentations or word documents, interactive tasks and Internet connections. Out of a total of fourteen digital classbook analyzed, only one does not contain interactive content, and of the features it has only content tables. That shows that digital classbooks are still in development, but they are also well on their way to becoming quality and diverse content.