Why CIMB fastsaver with 1% interest instead of DBS Multiplier with 1.85-2% interest for emergency funds?

CIMB fastsaver doesn't require you to fulfil any requirements, other than having $1000 in the account when you first sign up!

CIMB fastsaver gives 1% with no strings attached. You'll need to satisfy a few requirements before you're entitled to the 1.85% or more from DBS Multiplier. Since purpose of emergency is not touch it, better off in CIMB and let DBS Multiplier/OCBC 360/etc. be the current account (account used for transactions).