First, establish a consistent comparison: the same amount and the same holding period.
Steps
Then, compare the previous actual return (as an indicator, not a guarantee), the method of profit distribution, payout frequency, minimum withdrawal amount, withdrawal flexibility, fees, investment nature, and risk.
An account with a higher advertised interest rate doesn't necessarily guarantee a higher net return.
The figures, fees and limits in this answer vary by bank and change over time — confirm them with your bank or the official source before acting.