Electrum

Features

• 2FA

  Two-factor authentication (2FA) is a way to add additional security to your wallet. The first 'factor' is your password for your wallet. The second 'factor' is a verification code retrieved via text message or from an app on a mobile device. 2FA is conceptually similar to a security token device that banks in some countries require for online banking. It likely requires relying on the availability of a third party to provide the service.
• Bech32

  Bech32 is a special address format made possible by SegWit (see the feature description for SegWit for more info). This address format is also known as 'bc1 addresses'. Some Bitcoin wallets and services do not yet support sending or receiving to Bech32 addresses.
• Legacy Addresses

  Most wallets have the ability to send and receive with legacy bitcoin addresses. Legacy addresses start with 1 or 3 (as opposed to starting with bc1). Without legacy address support, you may not be able to receive bitcoin from older wallets or exchanges.
• Lightning

  Some wallets support transactions on the Lightning Network. The Lightning Network is new and somewhat experimental. It supports transferring bitcoin without having to record each transaction on the blockchain, resulting in faster transactions and lower fees.
• Multisig

  Some wallets have the ability to require more than one key to authorize a transaction. This can be used to divide responsibility and control over multiple parties.
• SegWit

  Some wallets support SegWit, which uses blockchain space more efficiently. This helps reduce fees paid by helping the Bitcoin network scale and sets the foundation for second layer solutions such as the Lightning Network.