Hi,
I understand you have chosen RW610 for your needs, right ?
Do you need 802.15.4 ? If yes, RW612 is the one you need.
Also, I undestand you prefer using a hostless product (including an application CPU (Arm Cortex-M33 here for RW610)) instead of an IoT Product such as IW611 combined with a i.Mx host . Right ?