Wax, sealant, and ceramic: the right choice depends on your use.
The question "which is better?" only makes sense in context: street car or garage car, frequent or infrequent washes, and how long you want it to last.
1) Wax: beautiful finish and easy application
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Ideal for those who like frequent "detailing".
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Very pleasant brightness, accessible app.
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Durability is typically shorter (weeks to a few months, depending on use and washing).
2) Sealant: longer-lasting synthetic protection
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Good resistance to rain, dirt and washing.
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Excellent "cost/benefit" for an everyday car.
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application is usually simple (spray or liquid)
3) Ceramic (including ceramic sprays): greater durability and hydrophobicity.
Leading brands explain that ceramic coatings tend to last longer than wax and can offer better water repellency (hydrophobicity), making maintenance easier — although professional applications may be more demanding and expensive.
Important: Ceramic is not a "scratch-proof shield." You still need to wash it properly.
How to choose in 30 seconds
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Looking for something simple and inexpensive? → wax or spray wax
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Do you want to maintain 4-6 months with minimal hassle? → sealant
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Want greater durability and easy maintenance? → ceramic (spray or coating)
Tip: If you're still learning, start with ceramic sealant/spray (more forgiving of mistakes) and progress from there.