Layla Zulfa
In a move that has caught tech enthusiasts and industry analysts off guard, Samsung has begun deploying a highly anticipated biometric enhancement feature to its devices—but in an order that defies conventional expectations. The "Increase Accuracy" feature for fingerprint authentication, which debuted on the high-end Galaxy S26 series, has made its way to the Samsung Galaxy S25 FE. Surprisingly, this rollout has bypassed the flagship S25 lineup, including the top-tier S25 Ultra, leaving the Fan Edition (FE) model as the sole recipient of this advanced security optimization for the time being.
Main Facts: What is "Increase Accuracy"?
At its core, the "Increase Accuracy" feature is a sophisticated software refinement integrated into the One UI 8.5 ecosystem. Traditionally, Samsung’s ultrasonic and optical fingerprint sensors have been reliable, but users have often resorted to "workarounds"—such as registering the same finger multiple times under different slots—to compensate for environmental factors like dry skin, moisture, or slight misalignment during the initial scanning process.
The new feature changes this paradigm. By allowing users to rescan their registered fingerprints up to 10 additional times, the system builds a more comprehensive and robust biometric profile. This creates a broader "data map" of the user’s fingerprint, enabling the sensor to recognize the print more effectively even when the user’s hands are dirty, slightly damp, or positioned at awkward angles. This is not merely a software patch; it is a fundamental shift in how the device handles biometric pattern matching, aiming to eliminate the friction that often plagues everyday device unlocking.
A Chronological Breakdown of the Rollout
The timeline of this feature’s emergence provides an interesting look into Samsung’s deployment strategy:
- Initial Debut (Galaxy S26 Launch): The "Increase Accuracy" functionality was first introduced as a marquee security feature alongside the Galaxy S26 series, underscoring the company’s commitment to refining its biometric hardware through better software processing.
- One UI 8.5 Announcement: During the broader rollout of the One UI 8.5 update, rumors circulated that this feature would be a key "quality-of-life" improvement for existing S25 series users.
- The May Security Patch: While the May security update was distributed widely across the S25 family, the specific inclusion of the "Increase Accuracy" toggle was found only in the S25 FE’s build.
- User Discovery: Reports from X (formerly Twitter) user Alfatürk, later verified by tech outlets like SammyGuru, confirmed that S25 FE owners were seeing the option, while owners of the S25, S25 Plus, and S25 Ultra remained excluded.
Supporting Data and Verification
To understand the scope of this rollout, Android Authority conducted independent testing across multiple devices. The results were conclusive: the feature is currently absent from the standard S25 and S25 Ultra units, even those running the latest One UI 8.5 build and the most recent May security patch. Conversely, when the same testing methodology was applied to the Galaxy S25 FE, the feature appeared exactly where expected.
How to Access the Feature (For S25 FE Users)
For those currently wielding the Galaxy S25 FE, enabling this improvement is a straightforward process:
- Navigate to Settings.
- Select Security and Privacy, followed by Biometrics.
- Tap on Fingerprints and enter your current credentials.
- Select a specific registered fingerprint.
- Locate and tap the "Improve Accuracy" option in the floating menu.
- Follow the on-screen prompts to rescan the finger up to 10 times to finalize the enhancement.
The Mystery of the FE Priority
The primary question facing the tech community is: Why the S25 FE? Historically, flagship devices—the Ultra and Plus models—are the first to receive new software features, serving as the "face" of the brand’s technological prowess.
Industry analysts suggest several theories for this unexpected sequence:
- Testing Strategy: It is possible that Samsung is using the S25 FE as a "canary in the coal mine" to test the feature’s stability on a broader, more diverse user base before pushing it to the high-volume flagship models.
- Hardware Optimization: There is a possibility that the sensor hardware in the S25 FE (or its specific firmware integration) was more readily compatible with the updated processing algorithms than the specific modules found in the S25 Ultra.
- Marketing Timing: By bringing a "flagship-grade" feature to the more accessible FE line, Samsung may be attempting to boost the perceived value of its mid-range-plus offerings, making the FE series a more attractive proposition for budget-conscious but tech-savvy consumers.
Implications for the Future of One UI
The implications of this rollout extend far beyond a faster unlocking experience. It represents a broader shift in how Samsung manages "Quality of Life" (QoL) updates. In the past, software improvements were often bundled into major version jumps (e.g., One UI 8.5 to 9.0). However, by injecting these features via monthly security patches, Samsung is signaling a more agile development cycle.
User Experience Improvements
The most immediate impact is the reduction of biometric failure rates. Users who work in demanding environments—such as those involving manual labor, healthcare, or high-moisture settings—will find the "Increase Accuracy" feature to be a significant productivity booster. By eliminating the need to "train" the sensor multiple times, the device becomes a more seamless extension of the user.
Security vs. Convenience
While some purists might argue that storing more biometric data could theoretically increase the attack surface, Samsung’s implementation remains localized. The additional scan data is encrypted within the device’s Secure Enclave, ensuring that the convenience of faster unlocking does not come at the expense of user privacy.
Looking Ahead: When Will the Rest Get It?
While Samsung has not issued an official statement explaining why the Galaxy S25 Ultra and S25 Plus have been left behind in this specific update cycle, the company has a strong track record of feature parity. It is highly probable that the "Increase Accuracy" feature will be pushed to the rest of the S25 family in the coming weeks, likely as part of the June or July security maintenance releases.
The decision to lead with the S25 FE serves as a reminder that the "Fan Edition" moniker is not just a marketing label; it is a series that Samsung is increasingly willing to treat as a high-priority testing ground for meaningful, user-centric innovations. For those of us waiting on our S25 Ultra devices, the wait is likely short, but the current situation highlights the unpredictable nature of mobile software deployments in an era of rapid, iterative updates.
For now, S25 FE users enjoy a distinct advantage in the biometric department. For everyone else, the best strategy remains patience, as the feature is clearly ready for prime time and is likely just a patch away from a wider release. As the ecosystem continues to evolve, these small, iterative improvements—rather than flashy hardware changes—are exactly what contribute to a premium, long-lasting user experience.
Nana Muazin
Rifan Muazin
