Bitcoin Cash vs Bitcoin Core (BCH vs BTC)

Bitcoin Cash and Bitcoin are the same chain up to August 1, 2017. At block 478,559 the two split. Every BTC holder at that moment also received BCH. Both coins still share SHA-256 mining, 10-minute blocks and a 21 million supply cap.

The split was about scaling. One side backed SegWit, a soft fork that changed how signatures are stored and prepared Bitcoin for off-chain payment channels. A group of developers, activists and China-based miners opposed SegWit and wanted bigger blocks instead. Bitcoin activated SegWit in August 2017. Bitcoin Cash launched with 8 MB blocks and raised the limit to 32 MB in 2018.

Since then the two chains have taken different roads. Bitcoin moves slowly and treats the base layer as settlement. Bitcoin Cash upgrades once a year and treats the base layer as the place where payments and contracts happen.

Design differences

Fees, hashrate and transaction counts change daily. The Real Numbers panel on this page shows them live.

Where Bitcoin Cash wins

Cheap on-chain payments. BCH blocks sit far below the 32 MB floor, so a normal payment does not bid against other users for block space. You pay a small per-byte fee and the payment shows up in seconds. Merchants who accept payments before confirmation can watch for double-spend proofs: nodes relay cryptographic evidence if someone tries to spend the same coin twice.

A block-size limit that moves by rule. The 2024 ABLA upgrade replaced the “argue about it every few years” approach with an algorithm. The limit never falls below 32 MB. It grows when blocks stay full, capped at roughly doubling per year under extreme load.

Contracts Bitcoin is still debating. The Bitcoin community has argued for years about covenant proposals. BCH already runs them. Contracts can read their own transaction since 2022. CashTokens put fungible tokens and NFTs directly inside UTXOs in 2023, with no token contract to deploy. The 2025 VM limits and BigInt upgrade raised the compute budget and added high-precision math. The 2026 upgrade added bounded loops, functions, bitwise operations and pay-to-script. If you want to test a covenant design on a live proof-of-work chain, BCH is a cheap place to do it.

Predictable upgrades. BCH ships network upgrades on a fixed May schedule, specified in public CHIPs. A proposal to cut block time to one minute (CHIP-2025-03) is under review, but it is not consensus and has no activation date yet.

Where Bitcoin wins

Security budget and hashrate. Both chains use the same SHA-256 hardware, and Bitcoin has by far the larger share of it. A bigger hashrate makes a 51% attack far more expensive. For large settlements, BTC’s confirmations carry more weight. Compare the live figures in the panel.

Liquidity and exchange support. Bitcoin has the deepest markets in crypto and near-universal exchange support. BCH liquidity is real but much thinner.

Institutional access. The SEC approved 11 US spot Bitcoin ETFs on January 10, 2024, and they began trading the next day. BCH has no US spot ETF. Grayscale filed on September 11, 2026 to turn its Bitcoin Cash Trust (BCHG) into an ETF on NYSE Arca. The filing states that the listing rule it depends on was not yet approved and names no date.

Lightning. Lightning lets two parties open a payment channel and send many payments off-chain, settling on-chain only when they open or close it. Lightning Labs launched it on mainnet in 2018. It comes with its own trade-offs: channels need on-chain transactions and liquidity management.

Network effect and brand. “Bitcoin” means BTC to most people. BCH carries the cost of explaining itself. It also went through its own splits, in 2018 and in 2020 (eCash).

Who should use which

• Choose BTC if you want the most liquid, most secure proof-of-work asset to hold for years, or you need ETF or institutional access.
• Choose BCH if you want to pay or get paid on-chain for fractions of a cent, issue tokens without a token contract, or build and test Bitcoin-style covenants today.
• Use both. Many people hold BTC as savings and use BCH to spend. The two coins are complements more often than rivals.

BCH also has weaknesses that this page does not hide: a small ecosystem, thin liquidity and little hype. Read the honest risks page before you commit money. For other comparisons, see BCH vs Litecoin and BCH vs Kaspa.