In Google Analytics 4 (GA4), metrics are the quantitative aspects of your data that help you understand and track the performance of your website. For example, the metric “Users” shows you how many users visited your website over a given time period. Going back to an earlier example, the “Users” metric tells you exactly how many people visited your site. Further reading: Dimensions in Google Analytics 412 Important Metrics in Google Analytics 41. SessionsThe “Sessions” metric shows the number of individual browsing sessions that occurred on your site during the selected time period.