What is coin control?
A wallet feature that lets you choose which unspent outputs to use in a payment.
Wallets normally choose a payment’s inputs automatically. Coin control lets you select particular UTXOsUTXOAn unspent transaction output: an amount of bitcoin left by a transaction, with rules for spending it. instead. Not every wallet exposes this choice.
The choice affects the transaction’s size and fee, and which parts of your history are linked together. Selecting coins does not hide the transaction or guarantee privacy.
References
- Sparrow Wallet, “How do I use coin control?”.
- Sparrow Wallet, “Spending Privately”.