One of the more powerful features of digital oscilloscopes is the automatic measurement function.
Most modern scopes allow you to measure 20 or 30 separate waveform parameters including rise/fall time, phase difference, peak-to-peak voltage, and more.
Some functions can actually measure large data sets to provide a “running average” of the measurement over a long time period.
The SIGLENT SDS X-E series utilizes all of the data in memory for measurements, including RMS. This can be up-to 14 Mpts.
In comparison, the SDS2X series 14 kpts due to resource limitations.