Mobile vitals report memory and CPU as one averaged value per view, which hides the spikes behind slowdowns, crashes, or battery drain. Performance Timeseries captures your app’s memory and CPU usage every second for the whole session. You see it as an interactive graph in the session, view, and operation side panels, so you can find exactly when resource usage spiked and what the user was doing at that moment.
To qualify for the this preview, you should already be using Real User Monitoring (RUM) on native iOS or Android applications.