Monday, July 4, 2022

Xiaomi × Leica Strategic Partnership in Imaging Technology

Xiaomi 12S Series “co-engineered with Leica” Launched in Mainland China

Today, July 4th, Xiaomi officially unveiled the new Xiaomi 12S Series “co-engineered with Leica”. This outstanding imaging product series is the first culmination of the Strategic Partnership in Imaging Technology between Xiaomi and Leica. The entire series features different imaging systems jointly developed by Xiaomi and Leica, containing Leica Summicron lenses, and supports Leica imaging profiles, all of which aim to empower individual creators to express their creativity while retaining the authentic style of Leica imagery.

Authentic Leica imagery, Leica imaging profiles

In this new era of mobile photography, Xiaomi and Leica have jointly created a new standard for smartphone photography. Combining Leica's in-depth understanding of optics, image processing, image quality, and Xiaomi's rich experience in smartphone computing photography, the Xiaomi 12S Series “co-engineered with Leica” offers unprecedented smartphone image quality, colors that closely adhere to Leica's signature look, and feel. 

To help push imaging technology to new limits, Xiaomi and Leica have co-developed sophisticated optical lenses. As the top model, Xiaomi 12S Ultra utilizes Leica's world-class optical design capabilities in its lens system while adhering to their stringent optical quality testing standards and implementing Xiaomi's expertise in miniaturizing components to ensure ultra-high-resolution ultra-high light sensitivity, reduced dispersion, and lower flare.

Xiaomi 12S Ultra primary camera adopts an 8P aspheric lens, to address common photography issues such as flare, ghosting, and chromatic aberration, the camera module of Xiaomi 12S Ultra also adds anti-glare lens coating, lens edge ink coating, cyclic olefin copolymer material, and infrared light filter with spin coating technology. Together, these features offer a clearer overall picture that is consistent across the lens.

In addition to the advanced optical design, Xiaomi 12S Series “co-engineered with Leica” also utilizes Leica imaging profiles, inheriting Leica's century-old image aesthetic and reproducing Leica's tone and aesthetics with the aid of cutting-edge algorithms. For the end-user this means access to two photographic styles: The "Leica Authentic Look" and the "Leica Vibrant Look", both offerings enhanced creative freedom, for the photographer.

  • The "Leica Authentic Look" pursues natural imagery for which Leica is known. By retaining light and shadow contrast, it adds a sense of three-dimensional depth to photos, with the characteristic excellence of Leica's time-proven light and shadow aesthetics.

  • The "Leica Vibrant Look" features input by both Xiaomi and Leica. Combining Xiaomi's experience in smartphone photography with Leica's leading aesthetic, photographers can strive to capture the emotion of the moment, symbolizing Leica's exploration of the smartphone photography space.

Xiaomi 12S Series “co-engineered with Leica” brings authentic “Leica Image Look” to a smartphone. 

Professional wide-angle camera with a super-large 1“ sensor 

Xiaomi 12S Ultra is equipped with Sony’s IMX989 1" sensor, implementing a Quad-Bayer pixel array with individual pixel sizes reaching 1.6μm. After pixel binning, this reaches 3.2μm, reducing noise, extending dynamic range, increasing light captured, and achieving overall better imagery in low-light conditions. This sets a new precedent in smartphone cameras, approaching traditional cameras in terms of hardware specifications. 

Xiaomi 12S Ultra is the first Android device to support Dolby Vision HDR video recording and playback. Dolby Vision enhances your videos with vivid colors, sharper contrast ratio, and richer details, providing you with vibrant and refined image quality. Xiaomi 12S Ultra uses HyperOIS for ultra-stable performance, offering continuous compensation for movement during video recording. HyperOIS utilizes the gap between two frames to drive the OIS motor to its original position, giving each frame a full effective range of stabilization.

Xiaomi 12S and Xiaomi 12S Pro feature Sony’s IMX707 as their primary sensor, which incorporates both a large sensor size and large pixels, at 1/1.28” and 2 and 2.44μm after pixel binning. With the support of Xiaomi AI Image Solution and Xiaomi ProFocus, these sensors achieve fast startup, capture, and continuous capturing. These devices support an industry-leading 30fps ultra-fast burst mode and exceptional low-light photography capabilities. Further, they also implement All-scene snapshots in their cameras, making it easier to capture the decisive moment.

Xiaomi 12S Series “co-engineered with Leica” has also been designed to be more photographer-friendly in post-production. The entire series supports 10-bit RAW format calibrated by Adobe Labs, with color correction metadata embedded in the files. When using Adobe Lightroom to open photos shot on Xiaomi 12S Series, Adobe Camera RAW software will automatically optimize photos based on metadata, providing professional photographers with a good starting point for post-production.

One smartphone, two Xiaomi Surge chips

Xiaomi 12S Ultra “co-engineered with Leica” is the first flagship model to be equipped with two proprietary Xiaomi Surge chips, Xiaomi Surge P1 fast-charging chipset and Xiaomi Surge G1 battery management chipset, offering great improvements in battery management and overall user experience.

Xiaomi 12S Ultra supports 67W wired fast charging, 50W wireless fast charging, and 10W reverse wireless charging. At the core of the Xiaomi Surge Battery Management System, is a 4,860mAh single-cell silicon-oxygen anode battery and Xiaomi Surge P1 fast-charging chipset, which also supports up to a 16A output current with 96.8% conversion efficiency. Furthermore, the Xiaomi Surge G1 battery management chipset offers a slew of battery management algorithms, embedding self-developed battery management algorithms to protect the working safety of the battery and monitor the discharge load to accurately predict the available battery life of the device. Xiaomi 12S Ultra also supports adaptive charging to prevent the battery from overcharging thereby increasing the number of charge cycles by 25%.

Xiaomi 12S Pro features Xiaomi Surge P1 fast-charging chipset, 120W wired charging, 50W wireless charging, and a 4,600mAh single-cell battery, while the Xiaomi 12S offers 67W wired charging, 50W wireless charging, and a 4,500mAh battery.

Flagship Performance, Flagship Display

As Xiaomi's latest flagship, Xiaomi 12S Series “co-engineered with Leica” is powered by the all-new Snapdragon® 8+ Gen 1 Mobile Platform, built on the TSMC 4nm process. Compared to Snapdragon® 8 Gen 1, the core area of Snapdragon 8+ Gen 1 is 21% smaller, with both the CPU and GPU receiving a 10% improvement in performance and a 30% improvement in energy efficiency. This not only significantly reduces the standby power consumption of the Xiaomi 12S Series but also allows for lower heat emission and power consumption under high-load computing scenarios.

Xiaomi 12S Ultra is equipped with a whole new heat dissipation system, similar to the biological mechanism leaves on a plant may use to absorb water. This three-dimensional cooling pump is ingeniously designed with a series of channels, which use a capillary network to actively pump cooling liquid condensed at the side opposite warm areas, greatly improving efficiency and increasing the thermal conductivity of a single unit by 100%, compared with traditional VC heat dissipation systems.

Xiaomi 12S Ultra and Xiaomi 12S Pro feature a 6.73" AMOLED color display with E5 luminescent material that delivers a professional level of detail, brightness, and color performance, in addition to a peak brightness of 1500 nits, 2K resolution, P3 color gamut, and 1-120Hz AdaptiveSync Pro. Xiaomi 12S is slightly more compact at just 6.28”, and also supports a P3 color gamut display, HDR10+, and 120Hz AdaptiveSync.

Also announced were Xiaomi 12 Pro Dimensity Edition, Xiaomi Book Pro 16, Xiaomi Book Pro 14, Xiaomi Smart Band 7 Pro, and Xiaomi Home WiFi.

Xiaomi 12S Ultra Quick Specs


163.17 x 74.92 x 9.06mm 


IP68 dust and water resistance 

Leather-like rear 

Classic Black, Verdant Green 

Imaging System 

Leica Summicron 1:1.9-4.1 / 13-120 ASPH. camera system 

Ultra-wide angle: 13mm f/2.2 

1/2" sensor (SONY's IMX586) 

48MP Quad-Bayer pixel array 

Pixel Binning: 12MP, 1.6µm 4-in-1 Super Pixel 

Dual-PD Auto-focus 

Supports macro mode 

Wide-angle: 23mm f/1.9 8P Aspheric Lens 

1" sensor (SONY's IMX989) 

50.3MP Quad-Bayer pixel array 

Pixel Binning: 12.5MP, 3.2µm 4-in-1 Super Pixel 

Octa-PD Auto-focus 

Lens edge ink coating 

Multi-layer ALD ultra-low reflectance coating 

Telephoto: 120mm f/4.1 Periscope 

1/2" sensor (SONY's IMX586) 

48MP Quad-Bayer pixel array 

Pixel Binning: 12MP, 1.6µm 4-in-1 Super Pixel 

Dual-PD Auto-focus 

Two photographic styles: Leica Authentic Look, and Leica Vibrant Look 

Leica filters: Leica Vivid, Leica Natural, Leica BW Natural, Leica BW High Contrast 

Master-lens System 


Front camera: 32MP RGBW Image Sensor 

Image Format 


4096 x 3072 (default) 

8192 x 6144 (50MP mode) 

8-bit sRGB 


4096 x 3072 

10-bit Adobe RGB 

Adobe Camera RAW 

Video Format 

Default (H.264 / H.265) 

7680 x 4320 24FPS 

3840 x 2160 60FPS 

3840 x 2160 30FPS 

1920 x 1080 60FPS 

1920 x 1080 30FPS 

1280 x 720p 30FPS 

Dolby Vision (10-bit Rec.2020 HLG H.265) 

3840 x 2160 60FPS 80Mbps VBR 

3840 x 2160 30FPS 80Mbps VBR 

1920 x 1080 60FPS 55Mbps VBR 

1920 x 1080 30FPS 35Mbps VBR 

Slow Motion (H.264 / H.265) 

1920 x 1080 480FPS 

1920 x 1080 240FPS 

1920 x 1080 120FPS 

1280 x 720 3840FPS (95ms capture speed, supports motion detection, upscale to output 12s slow-mo video) 

1280 x 720 960FPS (max. 30s capture) 

1280 x 720 480FPS 

1280 x 720 240FPS 

1280 x 720 120FPS 


Snapdragon® 8+ Gen 1 Mobile Platform 

All-new 3D cooling system 

8GB / 12GB LPDDR5 (6400Mbps) 

256GB / 512GB UFS 3.1 

FBO storage refresh 

Charging System 

Xiaomi Surge Battery Management System 

Xiaomi Surge G1 Battery Management Chip 

Xiaomi Surge P1 Charging Chip 

4,860mAh (typical) 

67W wired turbocharging 

50W wireless turbocharging 

10W reverse wireless charging 


6.73" Dolby Vision® TrueColor Display 

Samsung AMOLED LTPO, E5 material 

3,200 x 1,440, 522ppi 

1,500nits peak brightness, HBM 1,000nits (typ) 

360° ambient light sensor 

1-120Hz AdaptiveSync Pro 

Native 10-bit color depth, P3 color gamut 

Supports Dolby Vision®, HDR10+, HDR10, HLG 


Symmetrical Stereo Speakers 

SOUND BY Harman Kardon 

Support Dolby Atmos® 

X-axis linear motor 


Dual 5G 

Release 16 

4x4 MIMO 

Wi-Fi 6 


160MHz Channel 

2x2 MIMO 

Supports 8x8 Sounding MU-MIMO 

Bluetooth 5.2 

Supports AAC / LDAC / LHDC / aptX Adaptive 

Supports BLE Audio 

Supports Snapdragon Sound™ 

Multi-functional NFC 

Operating System 

MIUI 13 based on Android 12 





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