Creating a wallet model-based account you get a browser-based wallet which is encrypted with the password you provided. You can back it up using the brainkey or an encrypted binary file that contains all the private keys. The wallet model lets you use multiple accounts at the same time.
Being more secure than the account model, the wallet model is restricted to your current browser and device. To use the wallet in another browser or device, you need to import the wallet backup file or brainkey.
Wallet file backup required
The account model uses the combination of a password and an account name to generate private keys on the fly. You can log in to your account from anywhere, but you can be logged in with only one account at a time.
Single account accessible from anywhere