With lots of new EQ models rolling out, it is good to be able to put them together for comparison!
The key to understanding the EQ nomenclature is the third letter. EQ is the Electric prefix. The next letter tells you the size. EQS is S-Class like. The EQE is E-Class like. Then you just say sedan or SUV to be specific. The numbers tell you about the power. 350 < 450 < 500 < 580.
Here is a side by side of the EQS and the EQE.