Ones the market and one is an easier to use screen imo.
The one that isn't the market and looks more simplistic probanly allows you to credit with a debit card and use other easier services while the other will require you to do a direct deposit transfer from a bank account.
Based on other exchanges the market/more complex one is normally cheaper but it'll depend on the payment method and a few other things imo as they might charge different fees and rates (such as the company your card is with and the fees they charge, along with the currency your bank is using/whether it one of them needs to exchange eg króna to euro)
Thanks for your answer! However, the "simple" option is only for using your existing cash balance on your Binance account (i.e.your account is already funded via transfer/CC). There are other dedicated interfaces for using CC etc. to buy crypto.
The only perceivable difference is the €10k limit, hence my question whether this "simple" interface is just executing a spot order in the background, or if this is using different underlying mechanics (with different prices/fees). I must say, coming from Coinbase and Kraken, that Binance can be quite confusing.