Similarities--- Muslims, armies and contribution to the art.
differences--- languages and sects
Explanation:
Both empires taxed the non-Muslims living in their kingdom. Both fought with each other to gain power and increase their lands. Both have powerful armies which help them to expanding their lands. Both empires contributed in the field of art, literature and architecture. The main difference between them was that the Ottomans were Sunni while the Safavids were Shiite Muslims. They spoke different language, the Ottomans spoke Turkish while the Safavids spoke Persian language.
