Comparing the two fragrances…

Xerjoff
Kemi Eau de Parfum
Hayat
Shared character
Both Kemi Eau de Parfum and Hayat feature oud.
How they differ
Kemi Eau de Parfum contains sandalwood, vanilla, caramel, civet, castoreum, and cedar. Hayat is characterized by citrus, woody, spicy, animal, earthy, resinous, and aromatic accords. The notes in Hayat include cedarwood, neroli, amber, cardamom, patchouli, cinnamon, saffron, cypriol / nagarmota, oud / agarwood, lavender, bitter orange, atlas cedar, singapore patchouli, nagarmotha, ceylon cinnamon, persian saffron, bulgarian lavender, brazilian bitter orange, agarwood (oud), and cypriol oil or nagarmotha.
Who each suits
Kemi Eau de Parfum is suited for those who prefer notes of vanilla, caramel, and animalic elements like civet and castoreum. Hayat suits those who prefer a complex profile of citrus, spice, lavender, and earthy patchouli.