Bitcoin (BTC) was created in 2009 as a decentralized digital currency with a limited supply of 21 million coins, often referred to as digital gold.
Ethereum (ETH), launched in 2015, serves as a platform for building apps on the blockchain, enabling smart contracts, NFTs, and DeFi applications.
Bitcoin uses Proof of Work (PoW) while Ethereum transitioned to Proof of Stake (PoS) in 2022, making it more energy-efficient and eco-friendly.
Bitcoin is preferable for storing value long-term, while Ethereum is suitable for smart contracts, NFTs, and app development, highlighting their distinct use cases.