i-10th index is completely depending of the h-index and calculated automatically, where each item that has 10 citations or more will get 1 record in your i-10th index.
So both of them are essential.
Presentation Journal Impact Factors, Researcher h-index, How to improve r...
Ionut Cristian Scurtu - Thank you for your question. The i10-Index is the number of publications with at least 10 citations. Therefore, it is a simple index, used only by Google Scholar. Some researchers consider it a way to help gauge the productivity of a scholar. It is not widely used at universities. I do not see a relationship between the h-index and the i10-index. The h-index has a limitation related to the lack of sensitivity to new citations received by articles listed in the h- number (index), the g-index came to solve this limitation. It is more sensitive to the number of citations received by the author and consider new citations received for articles already counted in the h-index (the g-index is usually higher than the h-index for a researcher). The i10-index is another meter that could be used. However, it focusses on the number of publications receiving more than 10 citations but does not differentiate between 10 citations and 100, 200, or 2000 citations received. Also, we do not know why the cut point is ten, not 15 or 20, and how this cut point can be generalised across different fields/disciplines.
It may depend on the promotion policies of your specific university.
Total citations is a worthy measurement of the breadth of acceptance of your publications throughout your career, but i-10 is a measure of publications that have been more influential.
In addition, the "the last five years" measure is a reflection of your recent work and current leadership in your field.
For the record, the average full professor, across all disciplines and all schools worldwide, has a career h-index score of 4.97, according to Figure 3.4 in this study: