tonyalbus,Thanks for the quite informative video!
This product still leaves many mysteries and questions. It is difficult, of course, to demand any high characteristics for such a low cost. Your video showed that the tweezers are quite fast in measurements and the RLC recognizes the main denominations with confidence.
But there are big doubts about the reliability of the secondary parameters Rs, D, Q. This difference is especially clearly visible in the test where you measure a capacitance of 4700 μF. The D parameter of the tweezers is shown as 1.5, but on your Rioshui 4090 it was determined to be 0.6? The difference is almost 3 times!!!
Have you checked the reliability of the tweezers readings at frequencies other than 1 kHz? And also with a different test signal level of 0.3V?