This FAQ answers common questions about ETH, the native cryptocurrency of the Ethereum network. Learn what ETH is, how it works, its uses, and how it compares to Bitcoin.

What is ETH in simple terms?

ETH (Ether) is the native cryptocurrency of the Ethereum blockchain, used to pay for transaction fees and computational services on the network.

Ethereum is a decentralized platform that enables developers to build and deploy smart contracts and decentralized applications (dApps). ETH is required to interact with these applications, as fees are paid in ETH. It also serves as a store of value and can be traded on exchanges. In 2022, Ethereum transitioned to a proof-of-stake consensus mechanism, making it more energy-efficient.

How does ETH work?

ETH works by powering the Ethereum blockchain, a distributed ledger that records transactions and executes smart contracts.

Users pay gas fees in ETH to compensate validators for processing transactions and smart contract operations. ETH is also used for staking: participants lock up at least 32 ETH to become validators, earning rewards in return. The Ethereum network processes thousands of transactions per second, though scalability remains a focus.

Why does ETH have value?

ETH has value because it is required to use Ethereum's vast ecosystem of dApps, DeFi protocols, and NFTs.

Additionally, ETH is a scarce asset with a capped supply, and its utility drives demand. It is also widely adopted as an investment asset, listed on major exchanges. The value of ETH is determined by market forces, including supply and demand, network usage, and overall crypto market trends.

When was Ethereum launched?

Ethereum was launched on July 30, 2015, with the initial live release known as Frontier.

Since then, it has undergone several major upgrades: Homestead (2016), Metropolis (2017-2019), Serenity (2020-2022, including the merge to proof-of-stake), and Shanghai (2023). As of 2026, Ethereum continues to evolve with ongoing improvements to scalability and user experience.

What are the pros and cons of ETH?

ETH offers several advantages, including a large developer community, robust smart contract functionality, and widespread adoption, but it also faces challenges such as high gas fees and network congestion.

  • Pros: Programmable money, decentralized finance (DeFi) hub, active development, strong security.
  • Cons: High transaction fees during peak times, scalability limitations, competition from other blockchains.

Despite these cons, Ethereum remains the leading smart contract platform by total value locked and developer activity.

How is ETH different from Bitcoin (BTC)?

ETH and Bitcoin are both cryptocurrencies, but they serve different purposes: Bitcoin is primarily a digital gold and store of value, while ETH is the fuel for Ethereum's decentralized computing platform.

Key differences include:

  • Purpose: Bitcoin for payments/store of value, ETH for dApps and smart contracts.
  • Consensus: Bitcoin uses proof-of-work, Ethereum uses proof-of-stake.
  • Supply: Bitcoin capped at 21 million, ETH supply is not fixed but has a burn mechanism.
  • Transaction speed: Ethereum processes more transactions per second than Bitcoin.

Both are highly valuable and influential in the crypto space.

How can I buy ETH?

You can buy ETH on most cryptocurrency exchanges, such as Coinbase, Binance, or Kraken, using fiat currency or other crypto.

Steps to buy:

  1. Choose a reputable exchange and create an account.
  2. Complete identity verification (KYC).
  3. Deposit funds via bank transfer, credit card, or another crypto.
  4. Place an order for ETH and store it in a secure wallet.

Always consider security: use hardware wallets for large amounts and enable two-factor authentication.

What are the best ways to use ETH?

The best ways to use ETH include trading, staking, paying for gas fees, and participating in DeFi and NFT ecosystems.

Popular uses:

  • Investment: Buying and holding ETH for potential price appreciation.
  • Staking: Earning rewards by validating transactions (requires 32 ETH or through pools).
  • dApps: Accessing decentralized applications like Uniswap, Aave, and OpenSea.
  • NFTs: Buying, selling, and trading non-fungible tokens (most NFTs are on Ethereum).

ETH is versatile and integral to the crypto economy.

Final Thoughts

ETH is more than just a cryptocurrency; it is the lifeblood of the Ethereum network, enabling a decentralized internet where users have control over their assets and data.

Whether you're a developer, investor, or enthusiast, understanding ETH is essential for navigating the blockchain space. As Ethereum continues to evolve, ETH's role is likely to expand, making it a cornerstone of the digital economy.

Use this guide as a starting point, but always do your own research before making financial decisions.