Both baby wraps and baby slings are one size fits all with a single fabric material that you wear on your body and are suitable for carrying your baby from the newborn stage. Carriers, however, are a much better option as they offer comfort and adjustability. On the one hand, you wear baby slings in a single way where the fabric runs across your shoulders to your torso. Wraps, on the other hand, have multiple wrapping allowing you to wear your baby in different positions that distribute weight evenly on your body and grow with your child.