Comparing the two fragrances…

Guerlain

Nivea
Héritage
Men
Only in Men
Shared character
Both Héritage and Men feature a combination of woody and spicy accords, utilizing notes of cedarwood, vanilla, pink pepper, patchouli, coriander, tonka bean, and lavender.
How they differ
Héritage includes lemon and bergamot, resulting in citrus, powdery, and earthy accords. Men contains geranium, grapefruit, amber, nutmeg, cardamom, and salty notes, which contribute to fresh, synthetic, and creamy accords.
Who each suits
Héritage suits those who prefer citrus, powdery, and earthy profiles. Men suits those who prefer fresh, synthetic, and creamy profiles.