Ethereum smart contracts are applications that run on the Ethereum blockchain. Ethereum is "decentralised": Thousands of computers around the world hold identical copies of the smart contracts and of the current state of everything on the network. To know that their copies are correct, all computers on the network have to agree with each other* about the state of Ethereum. (*achieve consensus)
This makes Ethereum smart contracts highly secure, and because it is automated, removes the need for middlemen.
Argent wallet is built using Ethereum smart contracts. By using smart contracts, we are able to provide a better experience than other crypto wallets.
As a smart contract wallet, Argent offers features like multisig, time-locks, daily limits, trusted contacts, and seedless recovery.