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What is an ERC-4337 Smart Wallet?
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A smart contract wallet or smart wallet is a programmable Ethereum account that enhances the user experience through the following features
Batch transactions - users can combine multiple operations, such as approve and swap on a DEX, into a single transaction.
Gas fee abstraction - users do not need to hold ETH to pay gas fees; fees can be paid by sponsors or paid in other tokens.
Security - users can authenticate with passwords, social recovery, or multi-factor authentication instead of using risky seed phrases.
ERC-4337 is a new standard of Ethereum that aims to implement Account Abstraction, allowing users to use smart contract wallets for transactions and operations without relying on external accounts.
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