The key distinction between the Hourly and Detailed Reports revolves around their granularity and flexibility in date selection.
The Hourly Report delivers insights into your data at an hourly level, enabling in-depth exploration of a specific day's activities. Moreover, it empowers you to select a specific day and compare it with predefined or custom dates. However, it offers a relatively limited set of dimensions and metrics.
On the other hand, the Detailed Report provides a comprehensive overview of your metrics at a daily level. This report not only allows you to select a range of days but also enables comparison with a previous period or a custom period of your choosing. Despite the enhanced range of dimensions and metrics, it lacks the hourly breakdown offered by the Hourly Report.