Samsung S10 5 G was quickly renamed S21 5G. The only difference being S21 takes Two sims and eSim. Samsung S10 5G, was a step backwards, as it only takes ONE sim and has no SD card expansion. Was this a serious error by Samsung. Seeing their FAILURE, Samsung, went back and corrected their loss making error. As they were, and would have lost future product market to the new and progressive newcomers on the market scene.
The S10 was not just renamed S21. The S21 is a different model with better specs than the s10. What do youe mean by "Seeing their FAILURE, Samsung, went back and corrected their loss making error."? The S21 does not have an SD card slot so can you clarify your comment?