Comparison of understanding of the meaning ayat Khatamun Nabiyeen between Ahmadi and Non Ahmadi Muslims:
If you still have doubts, watch following video.
Khatme Nabuwwat (Finality of Prophethood) and Ahmadiyya Muslim Jama’at (Urdu) - a comprehensive reply with references from Quran, Ahadith and Muslim Scholars writings: