It was rumored months before the release of the Galaxy S8 that Samsung would have an In Display Fingerprint scanner for the device. We all know that Samsung wasn't able to make the deadline for the device's release, and instead placed the scanner on the back of the phone which wasn't everyone's favorite. Samsung continued to develop, but were not able to make it happen for the Note 8 either. Now it seems they have decided to abandon the In Display scanner on the Galaxy S9 as well.
According to sources Samsung has finalized the hardware specs of the S9 and S9 Plus. These phones have also gone into pilot production ahead of mass production beginning in December. While we won't see the In Display Fingerprint scanner on the Galaxy S9 Samsung won't be ditching fingerprint scanner tech on their phones since many of their services use it for authentication. They hope to have the tech ready for the Note 9 which should be announced in August of 2018.
via TheInvestor