Ocean Mode comes to Galaxy S25 Ultra with One UI 8.5 beta, bringing scientific-grade underwater photography

At a glance:

• Samsung has rolled out Ocean Mode to the Galaxy S25 Ultra via Expert RAW 5.0.08.2 in the One UI 8.5 beta
• Originally developed for oceanographers studying coral reefs, the mode now offers automatic color correction, motion blur reduction, and interval shooting
• Users must exercise caution: the IP68 rating protects against freshwater immersion only—saltwater exposure risks permanent seal damage

Scientific tool, consumer-ready

Ocean Mode, a feature born from a collaboration between Samsung and marine scientists, has transitioned from a niche research tool to a publicly accessible camera function. Initially introduced in early 2025 for the Galaxy S24 Ultra, the mode was not immediately available to general users. Instead, Samsung embedded it in the Expert RAW app for Galaxy S26 Ultra owners, signaling a phased rollout strategy. Now, with the latest Expert RAW update (v5.0.08.2) in the One UI 8.5 beta, the S25 Ultra joins the ranks—extending the capability to a broader segment of Samsung’s flagship lineup.

The feature’s origins lie in coral reef monitoring projects, where precise, consistent underwater imagery is critical. Researchers needed a way to capture true-color images at depth, where water rapidly absorbs red and orange wavelengths, resulting in monochromatic, blue-tinted footage. Ocean Mode corrects this by leveraging multi-frame analysis and spectral calibration, applying real-time color reconstruction algorithms that restore natural hues without manual post-processing. This scientific-grade accuracy, once confined to specialized field equipment, is now embedded in a consumer smartphone.

How Ocean Mode works under the surface

Underwater photography poses three core challenges: color distortion, motion blur from buoyant movement or currents, and the need for consistent intervals in time-lapse or survey work. Ocean Mode addresses all three through a combination of hardware-aware software optimization and computational photography. The mode taps into the Galaxy S25 Ultra’s wide-angle and telephoto sensors, adjusting exposure and white balance dynamically based on depth and ambient light conditions detected via the phone’s sensors.

Interval shooting is particularly useful for repeat surveys: users can configure the camera to capture images every two, five, or ten seconds, enabling before-and-after comparisons of reef health or marine life behavior. This automation removes human error and ensures temporal consistency—key for longitudinal ecological studies. Moreover, motion blur reduction combines optical image stabilization (OIS) data with AI-driven frame interpolation, smoothing out jitter even during brief dives or when the phone isn’t mounted.

Practical limitations and safety warnings

Despite its advanced optics, Ocean Mode does not override the physical constraints of the Galaxy S25 Ultra’s build. Samsung explicitly warns users that the IP68 rating applies only to freshwater immersion, not saltwater environments. The IP68 certification guarantees protection against temporary submersion in up to 1.5 meters of freshwater for 30 minutes—but saltwater’s corrosive nature can degrade the phone’s silicone seals over time, potentially compromising long-term water resistance. Even brief exposure without rinsing can leave mineral deposits that accelerate seal degradation.

Samsung’s guidance is clear: this mode is intended for controlled, shallow freshwater testing (e.g., pools or freshwater lakes), not open-ocean dives. Users venturing into marine environments risk voiding warranty coverage and damaging internal components. For professional marine biologists, Samsung recommends pairing the phone with a waterproof housing rated for saltwater use—though this would necessitate disabling Ocean Mode, as the Expert RAW integration relies on direct sensor access.

From lab to lagoon: broader implications

The democratization of Ocean Mode reflects a growing trend in consumer tech: scientific instrumentation becoming embedded in everyday devices. By opening access to non-experts, Samsung invites citizen scientists, educators, and hobbyists to contribute to ecological monitoring. Community-led reef mapping initiatives, for example, could leverage the Galaxy S25 Ultra’s accessibility to gather location-tagged visual data at lower cost than traditional survey gear.

Yet the feature also underscores a strategic pivot for Samsung’s camera software. Rather than treating RAW tools as optional add-ons, the company is integrating domain-specific capabilities—like Ocean Mode, Nightography, and astrophotography modes—into the core user experience. This not only differentiates the Galaxy Ultra lineup in a saturated premium segment but also reinforces Samsung’s commitment to computational photography as a differentiator beyond hardware specs.

Looking ahead: what’s next for underwater imaging?

While Ocean Mode is now live in the beta, Samsung has not announced a final release date for One UI 8.5 or plans to extend the feature to older flagships like the S23 or S24 series. Given the computational demands—particularly for motion blur reduction and spectral calibration—it’s likely reserved for phones equipped with the latest Snapdragon 8 Gen 3 chipsets and dedicated image signal processors (ISPs). Future iterations may incorporate depth-sensing data from LiDAR or ToF sensors to enhance 3D reef modeling, or integrate with cloud-based AI for real-time anomaly detection in marine life.

For now, users can test Ocean Mode in the One UI 8.5 beta via Samsung’s official beta program. Those participating should back up their data before installing, as beta software may introduce instability. Whether this marks the start of a new “eco-tech” subcategory in flagship smartphones remains to be seen—but with climate-related environmental monitoring gaining urgency, features like Ocean Mode could become standard in future high-end devices.