Nokia 3 has 2 dedicated sim card slots and you can use the nano size sim cards.
No. Nokia 2 does not have the fingerprint scanner.
Yes, Nokia 2 does have the FM radio.
Yes, Nokia 2 comes with Corning Gorilla Glass 3. It is scratch resistant.
It's not a bad phone, this Nokia 2. It's just that there's only so much you can do within a budget this tight.