The same headline price can reach you through several routes. Each has a different legal structure and set of risks.
Spot crypto
You own the coin or a claim on it. Custody and security matter, and so does whether you can withdraw.
Exchange-traded products
You hold a security that tracks the price, traded on a regulated market. You get familiar protections but pay management fees, and you cannot move the coin to a wallet.
Crypto CFDs
You hold a leveraged contract with your broker. You never own the coin, and financing costs and margin calls apply. In many regions CFDs are restricted for retail clients.
Before buying exposure by any route, decide whether you need ownership, simplicity or leverage.