Samsung Galaxy S25 Plus Spotted on Geekbench with Android 16-Based One UI 8: Internal Testing Begins

Samsung is already gearing up for its next major Android upgrade. Following the stable release of Android 15-based One UI 7.0, the tech giant has begun testing Android 16-based One UI 8 for its flagship Galaxy S25 series. Most recently, the Galaxy S25 Plus has been spotted on Geekbench, running a test build of One UI 8. This signals that Samsung has moved beyond the vanilla S25 and is actively preparing its premium S25 variants for the next big software update.

Samsung Galaxy S25 Plus, One UI 8, Android 16, Samsung Software Update, Geekbench Leak

The Korean variant of the Galaxy S25 Plus was tested under the software build S936NKSU2BYDN, a clear indication that internal One UI 8 testing is now underway. Let’s dive into what this means for Galaxy users, including benchmark performance, expected rollout schedule, and new features to anticipate.

Galaxy S25 Plus on Geekbench with One UI 8: What We Know

The Galaxy S25 Plus was recently spotted on the Geekbench database, confirming it is now being tested with Android 16 under the One UI 8 skin. Here are the important details:

• Device Tested: Samsung Galaxy S25 Plus (Korean Variant)

• Model Number: S936N

• Software Version: One UI 8 based on Android 16

• Build Number: S936NKSU2BYDN

• Single-Core Score: 3146

• Multi-Core Score: 9545

These benchmark results suggest high performance levels, particularly considering this is an early internal build. With further software tuning and optimization, performance is expected to improve even more by the time the final version rolls out.

Galaxy S25 Series Overview

To recap, Samsung launched the Galaxy S25 series in January 2025 with Android 15 and One UI 7.0 out of the box. The lineup includes:

• Galaxy S25 (Standard/Vanilla model)

• Galaxy S25 Plus

• Galaxy S25 Ultra

Earlier in April 2025, the vanilla Galaxy S25 was also spotted on Geekbench running a similar One UI 8 build. With the Plus model now added to internal testing, it’s evident that Samsung is moving full speed ahead toward the development and rollout of One UI 8 across its flagship devices.

Build Number Breakdown: What Does S936NKSU2BYDN Mean?

Samsung’s firmware build numbers follow a consistent format, and decoding S936NKSU2BYDN provides insights into the development phase:

• S936N: Device model (Galaxy S25 Plus, Korean variant)

• KSU: Region and carrier code (Korea)

• 2B: Indicates second major internal test build

• YDN: Build identifier for tracking software version and test cycle

The appearance of this build confirms that the One UI 8 development is in early stages, and Samsung is internally validating the software for stability, performance, and feature integration.

Performance Insights: Early Benchmark Results

Despite being in a testing phase, the Galaxy S25 Plus scored 3146 (single-core) and 9545 (multi-core) on Geekbench. These results reflect:

• Excellent processing performance thanks to the Snapdragon 8 Gen 4 chip

• Optimized power and thermal management even in early test builds

• Potential for further enhancements as Samsung refines the kernel and integrates One UI 8 features

While these scores are impressive, they don’t reflect the final performance users can expect in the stable update. Benchmark results tend to improve significantly closer to public beta or stable rollouts.

One UI 8 Release Timeline: When Can You Expect It?

Samsung was criticized for a slow rollout of One UI 7, with many devices receiving Android 15 months after Google’s official release. However, this time, Samsung appears to be moving faster with Android 16.

Expected Timeline for One UI 8:

• Q2 2025: Internal testing begins (currently underway)

• Q3 2025: One UI 8 Beta Program (likely starting August or September)

• Q4 2025: Stable rollout to Galaxy S25 series and other flagships

The One UI 8 beta might launch earlier than usual, potentially by late Q3, especially if Samsung wants to align its beta cycle more closely with Google’s official Android 16 timeline.

What to Expect from One UI 8 (Android 16)

While Samsung hasn’t officially revealed the feature list for One UI 8, we can expect:

1. UI and Design Improvements

Samsung might introduce a more refined visual experience, possibly with:

• New lock screen customization options

• Enhanced Material You integration

• Revamped quick settings and notification panel

• Smarter widgets and layout flexibility

2. Performance & Battery Optimizations

With every major update, Samsung works to deliver smoother performance:

• Better app launch times

• Improved RAM management

• Longer battery life through AI-powered background task handling

3. Privacy and Security Enhancements

Following Android 16’s privacy blueprint, One UI 8 may include:

• Granular app permissions

• Private space or secure folder enhancements

• Updated biometric unlock options

4. AI-Powered Features

As Samsung pushes further into AI, expect features such as:

• On-device language translation

• Generative AI for wallpapers and image editing

• Smart text predictions and summaries

5. Deeper Galaxy Ecosystem Integration

Expect smoother continuity across:

• Galaxy Tabs, Galaxy Books, and Galaxy Buds

• Samsung Wallet enhancements

• SmartThings automation and control upgrades

Comparison with One UI 7

Here’s a quick look at how One UI 8 may stack up against One UI 7:

Why This Matters for Samsung Users

The early internal testing of One UI 8 on both the Galaxy S25 and S25 Plus indicates that Samsung is prioritizing a faster and more efficient software development cycle. This matters because:

• Faster updates = better user experience

• Early testing helps ensure fewer bugs on release

• Flagship users benefit from priority access to beta and stable builds

This also suggests that Samsung may roll out One UI 8 to other devices (like Z Fold, Z Flip, and Galaxy A series) faster than they did with One UI 7.

Final Thoughts

Samsung's development of One UI 8 based on Android 16 is now in full swing, and the Galaxy S25 Plus's appearance on Geekbench serves as a strong indicator of things to come. With impressive performance scores even in the early phase and a renewed focus on timely updates, One UI 8 could be a major step forward in Samsung’s software journey.

As we await further leaks and official announcements, Galaxy S25 users can expect their first major software upgrade to be packed with smarter features, a sleeker interface, and tighter ecosystem integration.

Stay tuned for more updates as Samsung continues to test One UI 8 internally. We’ll keep you posted on beta rollouts, changelogs, and feature deep-dives as more information becomes available.

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