Coin vs token
A coin is the native currency of its own blockchain (BTC, ETH); a token is issued by a smart contract inside another blockchain (USDT on Ethereum). Network fees are paid in the coin.
How it works
A coin is created by the blockchain protocol itself: bitcoin appears as a reward to miners, ETH as a reward to validators. The network cannot run without it, because fees are paid in it and it secures the chain.
A token is a record in a smart contract running on someone else's network. USDT, USDC, most DeFi tokens and most memecoins are tokens. The same token can exist on several networks at once, and those are separate versions that cannot simply be mixed.
In practice the difference matters in two places. First, fees: to move a token you need that network's coin. Second, exchange withdrawals: when you choose a network for a token, you choose which blockchain it will arrive on.
You hold 200 USDT on Ethereum and 200 USDT on Tron. It is the same stablecoin, but two separate tokens on two different blockchains. Moving the first needs ETH, the second needs TRX. You cannot send tokens from one network straight to an address on the other.
Beginners often assume the token is the coin and that gas can be paid in the token itself. Transfers then get stuck because the network coin balance is zero. Keep a little of the network's native coin in any wallet that holds tokens.
Questions and answers
What is the difference between a coin and a token in simple terms?
A coin is the native money of its own blockchain. A token is an asset someone issued inside another blockchain using a smart contract.
Is USDT a coin or a token?
A token. It is issued on several blockchains (Ethereum, Tron and others), and on each one fees are paid in that network's coin.
Can a token become a coin?
Yes, if the project launches its own blockchain. Old tokens are then usually swapped for the new coins under announced rules, which is called a migration.
Related terms
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Updated: 2026-10-19