Keep these points in mind about Bitcoin and Ethereum:
1) Bitcoin produces a block approximately every 10 minutes, while Ethereum produces blocks in 12-second slots.
2) Bitcoin launched in 2009, originally intended as a peer-to-peer electronic cash system, with deliberately limited scripting capabilities.
3) When comparing Bitcoin and Ethereum, focusing on their designs and use cases is more useful than just looking at their prices, and makes it easier to avoid being swayed by market sentiment.
$BTC and $ETH are the native coins of Bitcoin and Ethereum, respectively, but they serve different purposes.