Samsung's Galaxy S26 series launched with a standout video feature called Horizontal Lock, part of the Super Steady mode. This gimbal-like effect locks the video frame to the horizon, keeping footage level even when the phone is tilted or rotated aggressively. For months, it remained exclusive to the newest flagship, but evidence is mounting that Samsung will backport it to the Galaxy S25 series with the upcoming One UI 9 update.
The discovery comes from a Galaxy S25 Plus user who shared findings on X (formerly Twitter). The user, Fahad Ali Javed, claims to have access to an internal One UI 9 test build (build number DZG4) and spotted the Horizontal Lock toggle within the camera settings. When activated, the video stays flat regardless of the phone's orientation, using heavy software cropping and gyroscope data to realign each frame. Because of the aggressive crop, the output is capped at 4K 30fps and typically uses the ultrawide camera to preserve a wider field of view.
This isn't the first time Samsung has introduced a flagship feature to older devices. The company has a history of porting camera software improvements, such as Expert RAW modes and night video enhancements, to previous-generation phones through One UI updates. However, features that rely on specific hardware – like the Galaxy S26's enhanced image signal processor or newer gyroscope – might not translate perfectly. Yet, because Horizontal Lock is primarily a software-driven process (relying on cropping and realignment), the Galaxy S25's hardware appears capable enough to handle it.
How Horizontal Lock Works
The feature is designed for action shots or scenarios where a gimbal isn't available. By digitally cropping into the sensor's output and shifting the frame in real time, the phone effectively counteracts rotational movement. This is similar to electronic image stabilization (EIS) but with a horizon-lock priority. While traditional EIS reduces shakiness, Horizontal Lock specifically ensures the horizon line remains level, which is particularly useful for panning shots or when walking on uneven terrain.
The heavy cropping does reduce the effective field of view, which is why Samsung likely limits it to the ultrawide lens and 4K resolution. On the Galaxy S26, the feature was praised for its effectiveness, often producing footage that rivals low-end gimbals. Bringing it to the S25 series would give users a significant creative tool without needing extra hardware.
Implications for Galaxy S25 Users
If the backport is confirmed, it will be one of the most compelling reasons to upgrade to One UI 9 when it rolls out. The Galaxy S25 already has strong video capabilities, including 8K recording and HDR10+, but Horizontal Lock fills a gap for those who shoot unstable handheld video. For content creators, vloggers, and travelers, this feature could make the S25 an even more versatile tool.
There is also speculation that Samsung might eventually bring Horizontal Lock to the Galaxy S24 series or even older models. However, the company tends to hold back some features to encourage hardware upgrades. Given that the S25 has a similar camera setup to the S26 (though with a different ISP), the probability of backward compatibility is higher. The S24 might miss out due to its older chipset and gyroscope calibration.
Notably, competitors like Apple and Google have offered horizon-level stabilization for years. Apple's Cinematic mode on iPhones includes a similar horizon lock, while Google's Pixel phones have had Locked Tracking mode for video. Samsung's move to bring this to a wider audience could help it catch up in software refinements.
What to Expect in One UI 9
One UI 9 is expected to be based on Android 15 and will bring numerous other improvements, including a redesigned quick settings panel, enhanced privacy features, and AI-based photo editing tools. The inclusion of Horizontal Lock suggests Samsung is focusing on camera optimizations as a key selling point. Additionally, the internal build leak indicates that development is progressing, though an official announcement may come closer to the Galaxy S26's successor launch, likely in early 2027.
For now, Galaxy S25 users should remain cautiously optimistic. The feature is still in testing and may not make the final cut. But the fact that it appears in a build at all is a strong signal. Samsung has not commented on the leak, but given the company's precedent with One UI updates, it would not be surprising to see an official confirmation in the coming months.
In the broader context, this backport highlights a growing trend in the smartphone industry: software differentiation is becoming as important as hardware. As camera sensors reach a plateau, features like Horizontal Lock provide a way to freshen up older devices and extend their useful life. For consumers, that means more value from their existing phone and fewer reasons to upgrade annually.
Should the feature launch, users will need to update to One UI 9 and look for the Horizontal Lock setting inside the Camera app's Super Steady mode. If enabled, the phone will automatically switch to the ultrawide lens and limit recording to 4K 30fps. It will be interesting to see if Samsung also adds options for resolution or frame rate in future updates, but for now, the trade-off between field of view and stability seems worthwhile.
While we await official word, the leak serves as a reminder that Samsung's software team is actively working to bring premium experiences to more users. Whether you shoot video frequently or just want the occasional steady clip, Horizontal Lock could be a welcome addition to the Galaxy S25's already robust camera system.
Source:Android Authority News