Samsung and the First 100-Megapixel Sensor

Samsung's ISOCELL Bright HMX made history as the first smartphone sensor to break the 100-megapixel barrier, packing 108 million pixels into a 1/1.33-inch space smaller than your fingernail. Built through a direct partnership with Xiaomi, it features Tetrapixel pixel-binning, Smart-ISO technology, and 6K video support. You're looking at a sensor that genuinely brought DSLR-level resolution to your pocket — and there's far more to uncover about what makes it extraordinary.

Key Takeaways

• Samsung partnered with Xiaomi from conceptual stages to mass production, collaborating to bring DSLR-level resolution to smartphones for the first time.
• The sensor broke the 100MP barrier with 108 megapixels and featured a large 1/1.33-inch sensor for improved light absorption.
• Smart ISO technology uses dual amplification levels to compensate for the small 0.8μm pixel size, ensuring quality in all lighting conditions.
• Tetrapixel technology merges pixels to produce sharp 27MP output, balancing detail and light sensitivity across varying shooting environments.
• The Samsung-Xiaomi collaboration aimed to establish a platform for content creation, enabling 6K video recording at 30fps on smartphones.

How the ISOCELL Bright HMX Broke the 100-Megapixel Barrier

When Samsung presented the ISOCELL Bright HMX in 2019, it shattered a milestone no mobile sensor had reached before — 100 megapixels. Clocking in at 108MP, this sensor didn't just win on pixel count. Its sensor size advantages stem from a large 1/1.33-inch build, letting it absorb extensively more light than smaller competitors.

You'll also notice how it handles varying conditions through advanced lighting processing. Its Smart ISO technology dynamically selects amplifier gain, switching between low and high ISO modes depending on your environment. In bright settings, you get vivid, saturated images. In darker scenes, noise drops considerably.

Combined with 0.8μm pixels that punch well above their size, the ISOCELL Bright HMX delivered image quality previously reserved for high-end DSLRs and medium format cameras — straight from a smartphone. The sensor also supports 6K video recording at 30fps, extending its capabilities well beyond still photography.

The ISOCELL Bright HMX was notably developed with Xiaomi, with the sensor making its commercial debut in the Xiaomi Mi Note 10 smartphone before finding its way into other flagship devices.

The Samsung-Xiaomi Partnership Behind the ISOCELL Bright HMX

Behind the ISOCELL Bright HMX's record-breaking debut was a close collaboration between Samsung and Xiaomi, stretching from the sensor's earliest conceptual stages all the way through mass production. You'd recognize this partnership as central to the unique sensor innovations that made 108MP mobile photography possible.

Lin Bin, Xiaomi's co-founder and president, praised the joint effort, while Samsung's EVP Yongin Park highlighted breakthroughs in pixel and logic technologies. Together, they pursued technology commercialization strategies aimed at bringing DSLR-level resolution into everyday smartphones.

Xiaomi even teased the sensor before Samsung's official August 12, 2019 announcement, signaling how deeply integrated the two companies were. Their combined expertise produced something neither could've achieved independently — a truly one-of-a-kind 108MP mobile image sensor. The partnership also aims to establish a platform for content creation, opening new possibilities for mobile photographers and videographers alike.

The ISOCELL Bright HMX features a Smart-ISO system that intelligently adjusts to different lighting conditions, helping deliver consistently high-quality images across a wide range of environments.

How the ISOCELL Bright HMX Delivers DSLR-Level Resolution on a Phone

The ISOCELL Bright HMX's ability to deliver DSLR-level resolution on a phone starts with its unusually large 1/1.33-inch sensor. That size directly boosts the sensor's light gathering, letting it capture detail that smaller smartphone sensors simply can't match.

Its 108MP count gives you far more raw data to work with, and Tetracell pixel binning merges four 0.8μm pixels into larger 1.6μm virtual pixels, producing sharp 27MP output images. This dynamic pixel response means the sensor adjusts pixel arrangement depending on lighting conditions, so you're not sacrificing quality in low light.

ISOCELL Plus barriers further isolate each pixel, preventing crosstalk and preserving color accuracy. Together, these features let you shoot with DSLR-grade clarity without carrying any extra equipment. Smart-ISO intelligently selects between low and high native amplifier gain levels to deliver optimal dynamic range with reduced noise across varying light environments.

How Tetrapixel Technology Adapts the ISOCELL Bright HMX to Any Light

Tetrapixel technology sits at the heart of how the ISOCELL Bright HMX handles any lighting condition you throw at it. Its adaptive resolution capabilities let the sensor shift between configurations based on available light, merging 4, 16, or all pixels into larger units that capture more light information without requiring separate hardware.

In dim environments, multi pixel binning performance transforms the sensor into a 12.5MP configuration with 2.24μm pixels, pulling in considerably more light while cutting noise. When you're shooting outdoors in bright conditions, the full 200MP resolution activates, delivering ultra-sharp detail.

For video, merging four pixels achieves 8K recording at 30fps without cropping the frame.

You're fundamentally getting one sensor that intelligently reconfigures itself to match whatever environment you're shooting in. Samsung's latest ISOCELL HP9 builds on this foundation, applying Tetrapixel technology specifically to telephoto imaging for sharper portraits in low-light conditions.

It's worth noting that higher megapixel counts don't automatically translate to better image quality, as computational photography and pixel efficiency play equally critical roles in the final result.

Why Smart-ISO Makes the ISOCELL Bright HMX Exceptional in Low Light

Smart-ISO rounds out the ISOCELL Bright HMX's adaptive toolkit by giving it two amplification levels — one low, one high — that the sensor automatically switches between depending on available light. In dim conditions, high ISO activates for low light sensor optimization, boosting signal amplification to pull detail from dark areas while minimizing noise.

In bright conditions, low ISO kicks in for dynamic range flexibility, preventing over-amplification that washes out highlights and strips away color accuracy. You get sharper, more faithful images regardless of the scene. For a sensor packing 108 million 0.8μm pixels, that intelligent gain-switching is critical — it compensates for the physical limitations of small pixels and guarantees consistent image quality whether you're shooting under harsh sunlight or near darkness. Smart-ISO's ability to optimize light-to-electrical signal conversion ensures that every photon captured by the sensor is translated into the most accurate and detailed image data possible.

The ISOCELL Bright HMX also pairs Smart-ISO with Tetrapixel technology, which merges four pixels into a single larger pixel to further enhance performance in challenging lighting conditions. This combination means the sensor can adapt at both the gain and pixel level, covering a wide range of shooting environments with remarkable consistency.

6K Video Recording Without Field-of-View Loss

High-resolution video recording often comes with a frustrating trade-off: the higher the resolution, the more the camera crops into the frame, shrinking your field of view. The ISOCELL Bright HMX eliminates that problem entirely. Its 108-megapixel array lets you record 6K video at 30fps without any cropping, preserving the full sensor field-of-view you'd expect from a native wide-angle shot.

You're not just getting more pixels—you're getting real time image processing that keeps every frame sharp and consistent across resolutions. Pair that with powerful AI based stabilization, and your footage stays steady without sacrificing width or detail. Whether you're shooting 6K or dropping to 4K at 60fps, the sensor maintains uniform wide-angle performance, giving you professional-level control that earlier smartphone cameras simply couldn't deliver. This sensor was jointly developed by Samsung and Xiaomi, marking a significant milestone in collaborative mobile imaging technology.

The Samsung Galaxy S20 Ultra takes full advantage of high-resolution imaging by featuring a 108-megapixel main camera sensor, pushing the boundaries of what smartphone photography can achieve.

Why the ISOCELL Bright HMX Permanently Raised Smartphone Camera Standards

When Samsung packed that kind of video capability into a single mobile sensor, it wasn't just solving one problem—it was signaling a broader shift in what smartphone cameras could do. The ISOCELL Bright HMX set new benchmarks through hardware design advancements that pushed mobile photography closer to professional-grade results.

Its advanced sensor architecture combined ISOCELL Plus pixel isolation, Smart-ISO, Tetracell binning, and Super PD autofocus into one cohesive system. At 108MP with a 1/1.33-inch build, it surpassed every multi-megapixel mobile sensor before it. Debuting in the Xiaomi Mi Note 10, it directly influenced Samsung's Galaxy S11 and Fold series. You can trace today's high-resolution mobile standards directly back to what this sensor introduced in 2019.

The sensor's ability to capture close-up images at up to 3X zoom without upscaling—while maintaining a full 12MP resolution—demonstrated that ultra-high resolution paired with direct pixel remapping could eliminate the compromises that had long defined mobile zoom photography.

Before sensors like the HMX arrived, achieving 100MP in consumer devices remained largely out of reach, with that level of resolution confined almost exclusively to medium format professional cameras too large and expensive for everyday use.