Cool idea with the smart card. Can you tell me when I need to get a new card offering 2.5% instead of 2% and it’s a good relative bonus? Tired of managing thin

Cool idea with the smart card. Can you tell me when I need to get a new card offering 2.5% instead of 2% and it’s a good relative bonus? Tired of managing things. Would like to try a simple search as a demo before making an account.