Ledgerlive lets you preview trades in Ledger Live without a hardware signer

Separate signing enables device-free trade previews

With Watch Mode in a supported app version, Ledger Live separates portfolio exploration from the hardware that authorizes spending, allowing previews before a signer is connected. The feature arrived with Ledger Live 4.0. A signer is the physical device that uses private keys to authorize transactions. Its Secure Element is the chip that protects signing secrets. A provider-rate preview needs market data and provider responses; authorization needs the corresponding wallet's private keys.

View image file

View image file

This separation lets you examine the buying and swapping interface before committing to hardware. Creating a portfolio view does not buy the assets that it displays.

Connection state changes the available account controls

An existing portfolio can remain visible after its signer is disconnected, while Watch Mode also supports exploration before owning any hardware. A connected signer supplies authorization for supported transactions. These access choices differ in the account information available and whether the app can obtain a transaction signature.

Account synchronization can keep an existing portfolio consistent across app installations. Transaction approval remains a separate operation on the signer.

Why can an asset appear in the portfolio without a swap quote?

A portfolio asset can lack a swap quote because providers apply narrower asset coverage, regional restrictions, and amount limits. Managing an asset in the app does not establish that an integrated provider exchanges it. The asset's network matters too, because provider support applies to particular source and destination choices. A similarly named asset on another network does not automatically inherit the same trading route.

A missing quote can also reflect a provider response failure. Offers depend on remote services, and an unavailable response cannot supply usable exchange terms. Without an eligible offer, there is no quoted trade to authorize. Market tracking remains a separate use of the app. Connecting a signer does not expand a provider's supported pair or regional eligibility. A later quote request may return an offer if the interruption was temporary.

Quote terms change the expected receiving amount

The receiving amount is the quoted quantity of destination crypto for the selected input, with deductions determined by the provider's exchange model. It serves a different purpose from the portfolio's cash valuation. Comparing offers requires the same source asset, destination asset, network selection, and input amount. Otherwise, output differences may reflect changed trade terms instead of a better offer.

For centralized provider exchanges in Ledger Live, the displayed receiving amount incorporates applicable Ledger, provider, and withdrawal fees. The withdrawal fee covers the provider's outgoing transfer.

The source-side network fee covers sending assets to the provider and appears separately in this exchange flow. It does not form part of the displayed receiving amount.

A fixed quote applies within the provider's acceptance conditions and validity window. A floating quote allows the receiving amount to change, subject to the provider's stated slippage limit.

Slippage is a change between the quoted exchange outcome and the outcome when the trade executes. A slippage limit restricts how much adverse movement the selected route permits. Decentralized routes can use different fee and execution arrangements. The quote's own terms determine which costs it includes, so the centralized exchange breakdown does not apply universally. A preview cannot reserve an earlier rate indefinitely.

Does a simulated trade prove that the real swap will succeed?

A simulated trade cannot establish that a later swap will complete, because execution depends on the funded account, signing approval, and the provider. The relevant spendable balance and applicable fees must satisfy the actual transaction's requirements. A Watch Mode preview also does not establish that a signer controls the selected account. The same distinction applies to staking: viewing an available opportunity does not authorize a staking transaction.

Provider requests create a separate privacy boundary

Provider quotes involve sharing proposed trade information, so device-free exploration can disclose data even when no assets move. Ledger Live can transmit trade details and an IP address to providers to generate offers and assess regional availability. A wallet address may also form part of a request when the selected service uses it. Optional app analytics involve a separate consent choice. Keeping signing keys offline does not make a quote request anonymous, and each provider handles received data under its own policies.

Hardware approval authorizes spending for a real exchange

A real exchange needs a supported account and the Ledger device application that can sign for its network. A swap from a Ledger-secured account requires approval on the Ledger signer before the device signs it. The details that appear on the signer must match the intended transaction. Clear Signing, where the transaction and integration support it, presents those details in readable form. A device configured with unrelated keys cannot authorize spending from the funded source account.

Key custody and asset custody also differ during execution. In the centralized provider exchange flow, source crypto goes to the provider, which delivers the destination asset. Other supported routes execute through decentralized protocols. Using a hardware signer keeps signing keys on the device. The selected route determines how assets move and which provider or protocol handles execution.

A quote establishes proposed terms, and an approved signature authorizes a transaction. For centralized provider exchanges, the swap history distinguishes ongoing processing from completion. The destination account's actual credit establishes the delivered amount.