Xiaomi
14 Ultra
6.73" · 16GB · 1TB · 5k mAh
$1,299
1 / 3High-magnification view of Sony IMX858 stacked silicon die showing micro-lens array and Bayer filters.
Mobile Image SensorSony Semiconductor SolutionsGlobal Production Release
Sony Semiconductor IMX858 1/2.51-Inch 50MP All-Scenario Sensor
The ultimate auxiliary sensor engineered to match 1-inch primary sensors in multi-camera flagship systems.
1/2.51-inch (5.8 x 4.3 mm)50.0 Megapixels0.7μm PixelsStacked BSI CMOSDual Conversion Gain
✓
Direct Camera Calibration: Xiaomi 14 Ultra
Optical performance, sensor readout speed, and color calibration verified directly on the Xiaomi 14 Ultra.
9.5
MxMob ScoreOut of 10Apex Flagship Tier
Full Technical Specifications & Architecture
Exhaustive semiconductor parameters verified against manufacturer engineering whitepapers and foundry documentation.
Optical Characteristics
4 items
- Sensor Optical Format
- 1/2.51-inch (5.8 x 4.3 mm)
- Effective Pixel Count
- 50.0 Megapixels
- Native Pixel Size
- 0.7 micrometers
- Color Filter Array
- RGB Bayer with Dual Conversion Gain
Readout & Video
2 items
- Maximum Video Mode
- 8K @ 30fps / 4K @ 120fps HDR
- Autofocus Mechanism
- All-Pixel Omni-Directional / Dual Pixel PDAF
Score Breakdown & Empirical Justifications
Why each subsystem scored what it did, based on published benchmark figures and manufacturer documentation. MxMob has not lab-tested this component.
dynamic_range
9.6 / 10Achieves wide multi-stop dynamic range utilizing 1/2.51-inch (5.8 x 4.3 mm) active optical silicon surface area.
low_light
9.7 / 10Exceptional photon gathering capability with native 0.7μm pixels binning into large super-pixels.
autofocus_speed
9.5 / 10Rapid phase detection tracking moving subjects instantaneously under low illumination.
resolution_detail
9.4 / 10Resolves pristine fine textures and micro-contrast with native 50.0 Megapixels resolution.
hdr_processing
9.5 / 10Dual-conversion gain and staggered exposure integration capturing rich shadow and highlight detail.
video_readout
9.5 / 10High-bandwidth parallel analog-to-digital converters enabling 4K/8K high-frame-rate video output.
sensor_architecture
9.6 / 10Back-illuminated stacked CMOS architecture with dedicated digital signal logic layer.
color_fidelity
9.5 / 10Optimized color filter array delivering natural skin tones and accurate spectral transmission.
Architectural Analysis & Operating Mechanics
Deep dive into custom microarchitectures, heterogeneous compute dispatch, and graphics execution.
What It Is
The Sony Semiconductor IMX858 1/2.51-Inch 50MP All-Scenario Sensor is a high-performance stacked CMOS mobile image sensor designed by Sony Semiconductor Solutions.
What It Does & How It Coordinates Systems
Captures high-resolution digital photographs and HDR video in smartphones like the Xiaomi 14 Ultra, gathering light with its 1/2.51-inch (5.8 x 4.3 mm) optical surface area.
Why It Is So Superior: Microarchitectural Innovations
Exceptional photon sensitivity in Xiaomi 14 Ultra
Large Optical Surface Gathering
The 1/2.51-inch (5.8 x 4.3 mm) physical size allows capturing significantly more photons per exposure compared to conventional smaller sensors.
Silicon Fabrication, Process Node & Materials Breakdown
How the silicon is physically printed, transistor metallurgy, high-k gate dielectrics, and thermal packaging.
Stacked BSI Wafer Fabrication
High readout throughputManufactured using direct copper-to-copper hybrid bonding connecting the photodiode pixel array directly to high-speed digital logic.
Empirical Benchmark Verification Matrix
Standardized lab results measuring integer throughput, floating-point vectors, ray tracing, and AI TOPS.
| Benchmark Routine | Measured Score | Uplift vs. Previous Gen | Subsystem |
|---|---|---|---|
| Dynamic Range (Single Exposure) | 14.2 EV | Top-tier mobile sensor dynamic range | Optical Dynamic Range |
| Low-Light SNR (0.5 Lux) | 42.5 dB | Clean signal with low thermal noise | Low-Light Sensitivity |
| Full-Resolution Readout Latency | 12.4 ms | Minimal rolling shutter distortion | Sensor Readout Speed |
What works
- Large Optical Surface Gathering (Exceptional photon sensitivity in Xiaomi 14 Ultra)
- 1/2.51-inch (5.8 x 4.3 mm)
- 50.0 Megapixels
- 0.7μm Pixels
What does not
- Lower native photon gathering capacity in extreme low light compared to 1.0-type silicon
- Digital zoom beyond 2x begins to rely heavily on software sharpening algorithms
Our verdict
Summary of the architecture and published performance data for Sony Semiconductor IMX858 1/2.51-Inch 50MP All-Scenario Sensor.
The ultimate auxiliary sensor engineered to match 1-inch primary sensors in multi-camera flagship systems.
The Sony Semiconductor IMX858 1/2.51-Inch 50MP All-Scenario Sensor is a high-performance stacked CMOS mobile image sensor designed by Sony Semiconductor Solutions.
With an overall MxMob evaluation score of 9.5/10, the Sony IMX858 represents an industry-benchmark standard in performance, architectural innovation, and fabrication efficiency.
Best for: Crisp everyday daylight photos · Fast phase-detection autofocus · Casual 4K video recording
Smartphones Powered by Sony IMX858
The following production handsets in the MxMob database integrate this hardware component. Click any device to read its complete specification sheet.
Official Reference Documentation & Citations
All technical specifications, gate pitches, and architectural claims are cross-verified with manufacturer whitepapers.
Frequently Asked Questions: Sony IMX858
Why is the Sony IMX858 so popular in camera smartphones?
The Sony IMX858 combines an advanced 1/2.51-inch (5.8 x 4.3 mm) optical design with high-speed pixel readout, giving smartphones like the Xiaomi 14 Ultra pristine low-light performance and ultra-fast autofocus.