I'm not an expert on that particular topic, but I think you can find one difference in the approach of ethnicity, cause African Descent women (as well as indigenous women) were double discriminated, so it means that the gender studies should worry more for other categories of analysis. And similarities, well... it depends on how you approach to feminism (liberal, queer, etc. etc. etc.), but I think every approach to feminism converges in real (not just formal) equality for everyone, but respecting differences.
Couldn't agree more with Lina. But (in my humble opinion) the study of african feminism should also (not only - but also) include the analysis of the consequences of Africa's long colonial past (a very "recent" past in what concerns some countries) and, in general, the huge development and social issues Africa is (has been) facing.
I agree with the people above and i also do think that western feminism is more of post modern feminism which has to do with the family structure and creating a wrong picture of feminism. Where as in African feminism, women are still yet to receive the equality within their society/country as well as from the world. As Lina said "double discrimination."
I was researching the same question and I found this. I hope you find it helpful. A comparative analysis on the perspectives of African Feminism Vs Western Feminism: philosophical debate with their criticism and its implication for women’s rights in Ethiopia context Found at https://academicjournals.org/journal/IJSA/article-full-text-pdf/C2CE88061829#:~:text=Generally%2C%20Western%20feminists%20disagree%20with,means%20oppression%20of%20neither%20gender.