Oasis Sapphire offers a simpler architecture for account abstraction compared to ERC 4337. It doesn’t require third-party services like bundlers and relayers, offering the same benefits while keeping the ecosystem uncomplicated. Sapphire smart contracts can perform functions like generating private keys, encrypting data, and signing transactions. This provides the same functionality as ERC 4337, along with the advantages of hardware security modules or browser plugins, without needing additional complex protocols or client-side downloads.