Yes. You can always access the money saved in Digit regardless of if Digit is having connection issues with your checking account. When these occur, we are only unable to receive the data needed to create saves for you.
Funds can be withdrawn back to checking through the Digit app, website, or by messaging the word "Withdraw" to the number Digit sends your daily checking updates from.
If you need a hand with your account connection, please contact our Support team, we're happy to help!