Samsung introduced the iris scanning feature two years ago with Galaxy Note 7, but Korean media reports suggest it might drop it for Galaxy S10, reports CNet.
Citing Korean publication The Bell, it said that Samsung is already developing parts for the upcoming Galaxy S10, but has no plans to include an iris scanning module like in previous Galaxy phones.
Instead, it may include an in-display fingerprint reader as an alternate authentication method, says the report.
This feature was previously rumoured the Galaxy S10 and has appeared in other phones like the Vivo Nex.
Other rumours say that the Galaxy S10 may get better 3D-sensing front cameras. This could help improve Samsung's Intelligent Scan, another form of biometric authentication.
Samsung's iris scanning isn't perfect either. In the past, hackers were able to fool the iris scanner on the Galaxy S8 with a photo and a contact lens.
The Galaxy S10 is expected to arrive next year as a follow-up to the Galaxy S9.
Samsung didn't immediately respond to a request for comment.