What is Ethereum (ETH)? A Complete Guide for Beginners | Differences from Bitcoin and How to Buy [2026 Edition]

"I know the name Bitcoin, but I don't really understand Ethereum (ETH)." "It's 2026, and I'm too embarrassed to ask now..." Do you have these concerns?

Boasting the second-largest market capitalization, Ethereum is not just a cryptocurrency for payments. It is a "decentralized platform" with the potential to fundamentally change our lives and businesses. Following the approval of spot ETFs in 2024, it has evolved into a sophisticated asset that now attracts the attention of institutional investors.

In this article, based on the latest 2026 market trends, we will explain everything from the basics of Ethereum and its definitive differences from Bitcoin, to how to buy and manage it on WEEX without mistakes, in a way that is clearer and more thorough than anywhere else. By the time you finish reading this, you should be ready to take your first step into Ethereum investment with confidence.

What is Ethereum (ETH)?

Ethereum (ticker: ETH) is the second-largest cryptocurrency by market capitalization and a decentralized platform that implements smart contracts. Developed by Vitalik Buterin and launched on July 30, 2015, it is utilized in a wide range of fields, including DeFi, NFTs, and blockchain games.

While Bitcoin aims to serve as a store of value like "digital gold," Ethereum aims to be the "world's computer," a platform that powers all kinds of applications.

Basic Information (as of February 4, 2026):

• Current Price: Approx. $2,270
• Market Cap: Approx. $274 billion (Ranked 2nd)
• Circulating Supply: Approx. 121 million ETH
• Block Time: Approx. 12 seconds
• Consensus Mechanism: Proof of Stake (PoS)

Differences from Bitcoin

Although both Ethereum and Bitcoin are cryptocurrencies, their purposes and functions differ significantly.

Bitcoin specializes in transfers and storing value, whereas Ethereum has the flexibility to build complex applications. This difference clearly defines their respective roles in the market.

What are Smart Contracts?

Smart contracts are Ethereum's most significant feature. They are easy to understand if you compare them to a "vending machine."

Traditional Contract: Pay money → Ask a clerk → Receive product (Human intermediary)

Smart Contract: Pay money → Contract executes automatically → Receive product (Program executes automatically)

In other words, a smart contract is a "program that executes automatically when conditions are met." This enables financial services (DeFi), NFT trading, and game item transactions without the need for intermediaries.

Key Use Cases

• Uniswap: A decentralized exchange (DEX) that allows users to swap cryptocurrencies without an intermediary.
• OpenSea: An NFT marketplace for buying and selling digital art.
• Aave: A lending protocol that enables the lending and borrowing of cryptocurrencies.

The Merge: Significance of the PoS Transition

On September 15, 2022, Ethereum completed a historic upgrade called "The Merge." This transitioned the consensus mechanism from Proof of Work (PoW) to Proof of Stake (PoS), reducing energy consumption by 99.95%.

Key Benefits of the PoS Transition

1. Environmental Consideration: Traditional PoW consumed massive amounts of electricity, but the transition to PoS reduced energy usage by an amount equivalent to the power consumption of Bangladesh.
2. Lower Barriers to Participation: Mining equipment is no longer required, and anyone holding ETH can contribute to network security.
3. Staking Rewards: You can earn rewards by locking your ETH into the network. With WEEX's staking service, you can start easily with as little as 0.00001 ETH. The current estimated annual yield is around 1.4% (varies by market conditions), allowing you to steadily increase your ETH holdings.

Ethereum Use Cases

1. DeFi (Decentralized Finance)

A financial system that allows for lending, borrowing, and trading without going through banks or securities firms. Representative examples include Uniswap (DEX), Aave (lending protocol), and Compound (interest rate protocol).

2. NFT (Non-Fungible Token)

A technology that proves ownership of digital art, music, or game items. These are traded on marketplaces like OpenSea and Blur.

3. Layer 2 Solutions

When the Ethereum mainnet is congested, transaction fees (gas fees) skyrocket. Layer 2 solutions solve this problem. Examples include Arbitrum, Optimism, and Polygon, which significantly reduce fees while increasing transaction speed.

Market Trends in February 2026

In early February 2026, Ethereum is trading around the $2,270 price level. It fell by approximately 7% in January, and a correction phase is continuing into February.

Technical Analysis

• RSI (Relative Strength Index): 27.78 (Oversold level)
• Key Resistance: $2,800–$3,000
• Support Line: $2,100–$2,200

Market Highlights

Large investors (whales) are showing signs of accumulation, but as of the end of January, a cumulative outflow of approximately 70,000 ETH (worth about $160 million) was observed from spot Ethereum ETFs. This is believed to be the result of portfolio rebalancing by institutional investors.

Future Potential of Ethereum

Bullish Factors

• Approval of Spot ETH ETFs: Spot Ethereum ETFs were approved in the U.S. in May 2024, facilitating the entry of institutional investors.
• Foundation for DeFi/NFTs: Ethereum remains the primary platform for the DeFi and NFT markets.
• Environmental Friendliness: The transition to PoS has drawn attention as a target for ESG investment.
• Development of Layer 2: The growth of Arbitrum, Optimism, and others is strengthening the ecosystem.

Bearish Factors

• Competition with Rival Chains: Competition is intensifying with faster, lower-fee chains like Solana and Cardano.
• Risk of High Gas Fees: The problem of transaction fees spiking during network congestion remains.
• Regulatory Risk: Stricter cryptocurrency regulations by governments worldwide could impact the entire market.

2026 Price Forecast (Reference)

• Conservative Forecast: $2,000–$2,500
• Neutral Forecast: $2,500–$3,000
• Bullish Forecast: $3,000–$4,000 (If ETF capital inflows resume)

Note: The above are forecasts by market analysts and are not guaranteed.

Summary

Ethereum (ETH) is the second-largest cryptocurrency by market capitalization, supporting DeFi, NFTs, and games through smart contracts.

Strengths:

• High utility (foundation for DeFi and NFTs)
• One of the world's largest developer communities
• Environmentally friendly due to PoS transition
• Earnings potential through staking

Risks:

• High price volatility
• Potential for high gas fees
• Intensifying competition with rival chains

Investment Strategy:

For beginners, we recommend "Dollar-Cost Averaging (DCA)" to mitigate the risk of price volatility.

This is a method of steadily purchasing a fixed amount of ETH (e.g., 5,000 yen worth) at predetermined times, such as "the 1st of every month" or "every Monday." With WEEX, you can place orders from as little as 5 USDT, allowing you to start building your assets at your own pace within your budget. Instead of investing everything at once, diversify your purchase timing to aim for stable, long-term asset growth.

Frequently Asked Questions (FAQ)

Q: What is the difference between Ethereum and Ethereum Classic (ETC)?

A: Due to The DAO incident in 2016, Ethereum underwent a hard fork. The original chain is Ethereum Classic (ETC), and the new chain is the current Ethereum (ETH). Today, ETH is overwhelmingly larger in both market capitalization and developer community.

Q: How much do I need to buy Ethereum?

A: On WEEX, you can purchase from 5 USDT (approx. 750 to 800 yen). You don't need to buy a whole coin (1 ETH); you can start investing with a small amount, like the price of lunch, so it's safe for beginners.

Q: How much are Ethereum transaction fees (gas fees)?

A: They fluctuate based on network congestion. They are usually a few dollars, but can reach tens or hundreds of dollars during peak times. You can significantly reduce fees by using Layer 2 solutions.

Q: Is Ethereum staking safe?

A: It is technically secure, but when staking through an exchange, it depends on the reliability of that exchange. WEEX is a globally trusted exchange with appropriate security measures in place.

Q: Should I invest in Ethereum or Bitcoin?

A: It depends on your investment goals. If you are looking for a stable store of value, Bitcoin is an option; if you are looking for technological growth and utility, Ethereum is a choice. A common strategy is to hold both for portfolio diversification.

Disclaimer

WEEX and its affiliates provide digital asset exchange services, including derivatives and margin trading, only to eligible users in jurisdictions where legally permitted. This content is for general information purposes only and does not constitute investment advice. Please consult with a professional before trading. Cryptocurrency trading carries high risks, and you may lose all of your invested funds. By using WEEX services, you are deemed to have agreed to all relevant risks and terms of service. Please trade at your own discretion and within your means. For details, please check the Terms of Service and Risk Disclosure.