Bitcoin (BTC) is mainly designed to be digital money and a store of value — like “digital gold.”

Ethereum (ETH) is designed to be a programmable blockchain, so developers can build apps, smart contracts, NFTs, DeFi tools, and more on top of it.

Key differences

1. Purpose

Bitcoin: Focused on sending and storing value

Ethereum: Focused on running decentralized applications

2. Token role

BTC: Used mostly as money/value transfer

ETH: Used to pay network fees and power Ethereum apps

3. Technology

Bitcoin: Simpler and more limited by design

Ethereum: More flexible because it supports smart contracts

4. Supply

Bitcoin: Max supply of 21 million

ETH: No fixed hard cap in the same way Bitcoin has

5. Typical use cases

Bitcoin: Long-term holding, payments, value storage

Ethereum: DeFi, NFTs, token creation, gaming, Web3 apps

Easy way to think about it

Bitcoin = digital gold

Ethereum = blockchain app platform

$BTC
$ETH