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Pick one unit for every amount, and add its fiat value if you want it. Open Settings > General and find the Display card.

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Switch between BTC and sats

Under Unit, select BTC (eight decimals, the default) or sats.

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Show the fiat value

The price source sees your IP address with each price request. The request carries no wallet data. See what the price source sees for when Gerfaut asks, and how Tor changes it.
1

Select the Fiat value switch

Amounts gain a second line with their fiat value, except the inputs, the outputs and the fee of a transaction. The fiat value is off by default.
2

Select the currency

Under Currency, the seven currencies of Every source work with both price sources, EUR by default. The 23 others, under CoinGecko only, switch the source to CoinGecko with a line that says why, such as CoinGecko is the only source that quotes INR. Selecting one of the seven again keeps CoinGecko until you select mempool.space.
3

Select the price source

Under Price source, keep mempool.space, the default, or select CoinGecko. With Automatic, mempool.space is one of the public servers Gerfaut syncs with on mainnet.
4

Check the rate

A line reads 1 BTC = with the rate and the time of the last update. When the source does not answer, amounts show without fiat until it does.

The unit and the fiat value apply to every amount at once.

With CoinGecko as the source, Powered by CoinGecko shows once at the bottom of each screen with a price or a fiat amount from CoinGecko. Select it to open CoinGecko’s site in your browser. The Android Bitcoin price widget shows it too. With mempool.space, nothing shows. A wallet on a test network, such as signet or testnet4, shows a fiat value of 0, because test coins are worth nothing.