Ethereum vs Bitcoin: the differences that actually matter in 2026

Bitcoin is a network for moving and storing value. Its coin, BTC, has a maximum supply of about 21 million under the network's rules. Ethereum is a network for running programs. Its coin, ether (ETH), pays for that activity and has no fixed cap. They share the same family of technology and do two different jobs. That difference shapes everything else: supply, security, fees and the ways you can lose money.

Key takeaways

• Bitcoin caps supply near 21 million coins, while Ethereum has no cap and its supply moves with usage.
• Bitcoin is secured by mining, Ethereum by staking.
• On November 11, 2026, Bitcoin traded at $73,352.99 and Ethereum at $2,043.59.
• Ethereum runs programs, which adds uses and also adds ways things can break.
• How you hold crypto matters: lost keys, hacked platforms and faulty code all cause real losses.

Bitcoin and Ethereum at a glance

Here are the facts side by side, before the explanations.

One naming point makes the rest easier. "Bitcoin" means both the network and the coin, while with Ethereum the network is Ethereum and the coin is ether, written ETH.

What Bitcoin is, in plain words

Bitcoin's blockchain is a public record of transactions. A payment uses earlier transaction amounts to create new ones instead of editing a balance. Your wallet does not hold coins. It holds the keys that control the bitcoin records on that ledger.

Miners use specialised hardware to propose blocks. Other computers on the network check those blocks against the rules and reject invalid ones. A miner's reward includes newly issued bitcoin and transaction fees. Those fees vary with demand for space in a block.

New coins arrive on a schedule that slows down. The subsidy halves every 210,000 blocks. The last halving happened at block 840,000 on April 20, 2024. The reward is now 3.125 BTC per block. A fixed supply is a design choice, not a promise about price. A March 2, 2026 filing with the US Securities and Exchange Commission says bitcoin's market value is driven mainly by supply, demand and investor sentiment. It says falling demand may push the price down.

What Ethereum is, in plain words

Ethereum is the network and platform. Ether is the coin used to pay for transactions and applications on it. These payments are called gas fees. Gas measures the computing work a transaction needs. The fee depends on the gas used and its price per unit, paid in ETH.

A smart contract is a program with its data stored at an Ethereum address. It runs as written when someone sends it a transaction. Deploying one is a transaction that costs gas. That is why Ethereum has more moving parts than Bitcoin. It also has more things that can go wrong.

Ether has no supply cap. Validators receive new ETH for their work. Ethereum destroys the base fee of each transaction. Total supply can grow or shrink depending on activity. No cap does not mean unlimited growth. New ETH is tied to validator rewards, and the amount destroyed moves with demand. For the practical side, see our guide to buying Ethereum in Europe.

The four differences that actually matter

Security. Bitcoin makes blocks expensive to produce. A miner must solve a difficult mathematical puzzle to propose a block. Rewriting an old block means doing that work again for it and every block after it. Cambridge's 2026 report estimated Bitcoin mining's annual electricity use at roughly 150 to 180 terawatt-hours (TWh). Ethereum asks validators to lock up at least 32 ETH. It pays them for behaving correctly. It can take away part of their stake for provable misconduct.

Supply. Bitcoin's limit is enforced by the computers that validate the chain, which reject a block reward above the permitted amount. Ethereum's supply is a moving number. Etherscan's API documentation, updated November 11, 2026, shows a current-circulating-supply example of 122,373,866.2178 ETH that excludes ETH2 staking rewards and EIP-1559-burned fees. TokenPost reported that Ethereum's net supply rose by 778,412.846 ETH between January 1 and October 9, 2026.

Fees and speed. On Bitcoin, a payment on the main network usually waits for a block. Confirmation is not certain straight away. Extra confirmations reduce the risk of reversal. On Ethereum, being included in a block is not the same as being final. Finalisation typically takes about 15 minutes. It needs support from two-thirds of staked ETH. Gas fees move with demand.

The layers on top. Lightning keeps bitcoin payments in channels between users and settles them on Bitcoin. This allows near-instant, low-cost transfers. The trade-offs are real. Money is tied up in channels. You need a working route and enough available funds. A forced channel close can delay access to money. Ethereum rollups work differently. They run transactions off the main chain, group them together and post the data back to Ethereum. Optimistic rollups allow fraud challenges. They commonly delay withdrawals to the main chain for roughly seven days. Zero-knowledge rollups use mathematical proofs instead.

Risks

• Prices move hard in both directions. CoinGecko's UTC daily closes for Bitcoin were $75,776 on November 7, $74,740 on November 8 and $75,267 on November 9, 2026. Ethereum closed at $2,237.05, $2,124.38 and $2,132.14 on those same dates.
• Scarcity is not a price guarantee. The March 2, 2026 SEC filing is explicit that declining demand may cause bitcoin's price to fall.
• Custody is your problem. A wallet holds the keys that control your coins. Losing the keys means losing access. Holding through a platform replaces this with the platform's own risk. For a recent example of how fast prices can turn, read our piece on Bitcoin's fall below $76,000.
• Code can fail. A smart contract runs as programmed when it is called. That includes badly written logic. Extra layers add their own delays and conditions.
• Incentives shift over time. Cambridge Judge Business School noted that fees made up just 0.67% of miner revenue over the 90 days to October 4, 2026, and flagged the incentive question as the subsidy keeps halving.

Verdict: which one fits which reader

There is no single winner: it depends on what you want. The decisive fact is the supply rule. Bitcoin's maximum is fixed at about 21 million and enforced by the network's own validation rules, while Ethereum's supply has no cap and changes with issuance and the fee burn.

• Bitcoin suits someone who wants the simpler design: one job, one supply schedule, and a reward that halves every 210,000 blocks.
• Ethereum suits someone who wants exposure to a network where programs run and fees are paid in its own coin, and who accepts the extra layers and the code risk that come with it.
• Neither suits someone uncomfortable with price swings or with holding keys, given the November 2026 price moves in both coins.

Both networks also keep changing. Bitcoin Core 32.1 was published on October 27, 2026, and the same announcement said versions 29.x and older reached end of life. On November 6, 2026, the Ethereum Foundation said its Glamsterdam upgrade was being tested on test networks but that the hardfork process was delayed, and that Hoodi would not fork until security issues were resolved. On November 6, 2026, Cointelegraph reported that Russia had finalised rules allowing retail BTC and ETH trading through regulated intermediaries from November 17, with Moscow Exchange planning a December 1 pilot.

This article is for information only and is not investment advice.

Frequently asked questions

Is Ethereum better than Bitcoin? Neither is better in the abstract. Bitcoin gives exposure to an asset with a capped supply of about 21 million. Ethereum gives exposure to a network whose coin is spent to use it. They answer different questions, and the November 11, 2026 market values show a large gap: $1,475,163,029,930 for Bitcoin and $249,740,196,313 for Ethereum.

Is Bitcoin's 21 million cap guaranteed? It is enforced by consensus rules. Validating computers check the block reward and reject any claim above the permitted amount, and the scheduled subsidy halves every 210,000 blocks. The subsidy is currently 3.125 BTC per block, and the next level starts at block 1,050,000.

Is Ethereum faster than Bitcoin? It depends what you measure. Ethereum has a block opportunity every 12-second slot, but finalisation typically takes about 15 minutes. Bitcoin blocks average about 10 minutes and confirmation is probabilistic, so more confirmations mean less reversal risk. For small payments, Lightning channels can be near-instant.

Do I need 32 ETH to earn staking rewards? A validator stakes at least 32 ETH and earns ETH for taking part correctly, helping finalise blocks once at least 66% of staked ETH votes for them. There are penalties too. Offline validators miss rewards and pay inactivity penalties, and certain dishonest actions trigger slashing and removal.

Which one carries more software risk? Ethereum has smart contracts and rollups. Its contracts are programs stored on the chain that execute when called. Its rollups post batched data back to Ethereum, and optimistic ones commonly delay withdrawals for roughly seven days. Lightning adds its own liquidity and force-close constraints.

Sources

• mempool.space: Bitcoin Block 840000 (20 April 2024)
• Cambridge Judge Business School: Funding Bitcoin's Future (October 2026)
• ethereum.org: Proof-of-stake consensus (2026)
• Cointelegraph: Russia finalizes crypto trading rules for November rollout (6 November 2026)
• Bitcoin Developer Documentation: Block Chain
• ethereum.org: Ethereum vs Bitcoin
• ethereum.org: Ethereum layer 2
• CoinGecko: All Cryptocurrencies (11 November 2026)

Cover photo by Traxer on Unsplash.