What's the difference between stETH and wstETH?

I'm curious about the distinction between stETH and wstETH. Could you please elaborate on the key differences between these two cryptocurrencies? I've heard they're somehow related to Ethereum staking, but I'm not entirely sure how they differ from each other. Would you mind explaining the underlying mechanisms, their use cases, and any potential risks involved? It would be great if you could provide a concise yet comprehensive overview. Thank you in advance for shedding some light on this topic!