Xiaomi 15 Ultra (16GB + 512GB) Review | 197 Data compared

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  • Avg. price: ~£1,060
  • RAM capacity: 16 GB
  • Internal storage: 512 GB
  • Screen size: 6.73 inches
  • Main camera megapixels: 200 MP & 50 MP & 50 MP & 50 MP

Xiaomi 15 Ultra (16GB + 512GB) review. Compare 197 technical specifications and user reviews to see how it ranks among smartphones and if it's worth buying.

9.1

Overall score

What it is: An overall evaluation of the smartphone's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best smartphones on the market.

Score components:

90.0%

9.1

Technical Score

10.0%

9.0

User score

Exceptional
9.1

Technical Score

What it is: An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

When it matters: When you want to compare smartphones based on technical performance and available features.

Score components:

25.0%

9.6

Performance & Hardware

18.0%

9.3

Camera

15.0%

9.3

Display

15.0%

9.5

Battery

10.0%

8.2

Software

10.0%

8.3

Connectivity

4.0%

9.1

Audio

3.0%

7.9

Design

Exceptional
9.0

User score

What it is: A rating that combines user reviews and the total number of reviews received by the smartphone

When it matters: When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.

Score components:

70.0%

8.8

User reviews

30.0%

9.5

Popularity

User score:
United Kingdom
amazon
4.4
(582)
amazon
4.1
(30)

(Reviews last updated: August 2026)

Exceptional
    • No image
    No image

    Best prices

    Best rankings

    ?

    Available: ranking among products currently available (including other versions of this product).
    All: ranking among all products in the database.

    Verdict

    The Xiaomi 15 Ultra (16GB + 512GB) is a premium flagship smartphone featuring the powerful Snapdragon® 8 Elite Mobile Platform processor, 16GB of LPDDR5X RAM, and 512GB of UFS 4.1 storage. Its standout characteristic is the sophisticated Leica quad-camera system (50MP main, 50MP ultrawide, 50MP 3x telephoto, 200MP 4.3x telephoto) with a large 1-inch main sensor, which provides superior photography and zoom capabilities. The phone boasts a stunning 6.73-inch WQHD+ LTPO AMOLED display with a 1-120Hz adaptive refresh rate and an ultra-bright 3200 nits peak brightness, protected by Xiaomi Shield Glass 2.0. Pros include excellent performance, an immersive and vibrant display, great battery life from its 5410mAh battery, fast 90W wired and 80W wireless charging, and an IP68 water and dust resistance rating. Primary cons tend to be its substantial bulk and weight, potentially convoluted HyperOS software with some bloatware, and average video quality compared to some competitors.

    Technical Specifications of smartphone Xiaomi 15 Ultra (16GB + 512GB)

    Technical Score

    What it is: An assessment of the smartphone's technical performance, covering eight key areas: performance & hardware, software, camera, connectivity, display, battery, audio, and design.

    When it matters: When you want to compare smartphones based on technical performance and available features.

    Score components:

    25.0%

    9.6

    Performance & Hardware

    18.0%

    9.3

    Camera

    15.0%

    9.3

    Display

    15.0%

    9.5

    Battery

    10.0%

    8.2

    Software

    10.0%

    8.3

    Connectivity

    4.0%

    9.1

    Audio

    3.0%

    7.9

    Design

    9.1
    Xiaomi 15 Ultra (16GB + 512GB) has a technical score of 9.14 points, which is higher than 98.4% of smartphones.
    User score

    What it is: A rating that combines user reviews and the total number of reviews received by the smartphone

    When it matters: When you want to know how a smartphone handles daily tasks and how reliable it remains over time according to user feedback.

    Score components:

    70.0%

    8.8

    User reviews

    30.0%

    9.5

    Popularity

    User score:
    United Kingdom
    amazon
    4.4
    (582)
    amazon
    4.1
    (30)

    (Reviews last updated: August 2026)

    9.0
    Xiaomi 15 Ultra (16GB + 512GB) has a user score of 8.99 points, which is higher than 81.2% of smartphones.
    Popularity
    What it is: An indicator based on the number of reviews received by the smartphone.
    When it matters: When you prefer to purchase a product chosen and reviewed by many other consumers.
    9.5
    Xiaomi 15 Ultra (16GB + 512GB) has a popularity of 9.5 points, which is higher than 69% of products in this category.
    Ratio quality/price

    What it is: An indicator that combines the smartphone's overall rating with its cost.

    When it matters: When you are looking for a smartphone with a good balance between quality and price.

    Score components:

    60.0%

    9.1

    Overall score

    40.0%

    4.9

    Price

    7.9
    Xiaomi 15 Ultra (16GB + 512GB) has a quality-to-price ratio of 7.9 points, which is higher than 62.4% of products in this category.
    Brand name
    What it is: The manufacturer or brand under which the smartphone is marketed and sold.
    When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

    Importance: MEDIUM

    Xiaomi
    Processor model
    What it is: The central System-on-Chip (SoC) that houses the CPU, GPU, modem, and other core processing components.
    When it matters: When you want to know the specific engine powering your device's speed and features.

    Importance: HIGH

    Qualcomm Snapdragon 8 Elite
    Xiaomi 15 Ultra (16GB + 512GB) uses the Qualcomm Snapdragon 8 Elite processor which is faster than processors in 95.2% of smartphones and equal to processors in 2% of smartphones.
    RAM capacity
    What it is: The amount of volatile memory available for running apps and multitasking.
    When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

    Importance: HIGH

    Good value: >12 GB

    16 GB
    Xiaomi 15 Ultra (16GB + 512GB) has a RAM capacity of 16 GB which is larger than the RAM capacity of 83.5% of smartphones and equal to that of 12% of smartphones.
    Internal storage
    What it is: The total built-in space available for apps, media, and files.
    When it matters: When you keep large libraries of photos, videos, and apps directly on your device.

    Importance: HIGH

    Good value: >256 GB

    512 GB
    Xiaomi 15 Ultra (16GB + 512GB) has an internal storage capacity of 512 GB which is larger than the storage of 77.1% of smartphones and equal to that of 17.2% of smartphones.
    CPU boost clock speed
    What it is: The maximum speed the processor can achieve temporarily under heavy load.
    When it matters: When you run demanding apps or games that require short bursts of peak performance.

    Importance: MEDIUM

    Good value: >3.2 GHz

    4.32 GHz
    The CPU boost clock speed of Xiaomi 15 Ultra (16GB + 512GB) is 4.32 GHz which is higher than the boost speed of 96.5% of smartphones and equal to that of 1.7% of smartphones.
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    Operating system
    What it is: The primary system software that manages the smartphone's hardware and software resources.
    When it matters: When you have a preference for the user interface and app ecosystem.

    Importance: HIGH

    Android
    Xiaomi 15 Ultra (16GB + 512GB) uses the Android operating system, which outperforms that of 1% of smartphones.
    Android 15
    Android version
    What it is: The specific generation number of the Android operating system installed on the device.
    When it matters: When you want to ensure app compatibility and access to the latest software features.

    Importance: LOW

    Android 15
    Xiaomi 15 Ultra (16GB + 512GB) runs Android version Android 15 which is newer than that found in 70.6% of smartphones and equal to that in 25.1% of smartphones.
    Direct OS updates
    What it is: Indicates whether the device receives operating system updates directly from the manufacturer or Google, ensuring timely security and feature updates.
    When it matters: When you want the fastest access to new features and security patches.

    Importance: HIGH

    no
    Xiaomi 15 Ultra (16GB + 512GB) does not receive direct OS updates. 20.5% of smartphones receive direct updates.
    Open-source OS
    What it is: Shows whether the device’s operating system is based on open-source code, allowing community contributions and greater transparency.
    When it matters: When you value transparency and potential community-driven modifications.

    Importance: LOW

    yes
    Xiaomi 15 Ultra (16GB + 512GB) uses an open-source OS. 94.6% of smartphones use an open-source OS.
    Dark mode
    What it is: A display option that uses dark backgrounds to reduce eye strain and save battery on OLED screens.
    When it matters: When you want to reduce eye strain at night or save battery on OLED screens.

    Importance: LOW

    yes
    Xiaomi 15 Ultra (16GB + 512GB) offers dark mode. 95.8% of smartphones support this feature.
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    Multi-lens main camera
    What it is: Indicates that the rear camera system includes multiple lenses (e.g., wide, ultra-wide, telephoto) for versatile shooting options.
    When it matters: When you want versatility to shoot wide landscapes, standard shots, and zoomed details.

    Importance: MEDIUM

    yes
    Xiaomi 15 Ultra (16GB + 512GB) includes a multi-lens main camera system. 93.7% of smartphones include multi-lens setups.
    Main camera megapixels
    What it is: The resolution of the primary rear camera sensor, measured in millions of pixels (MP). Higher megapixels can capture more detail.
    When it matters: When you want to capture high-resolution images that can be cropped or printed large.

    Importance: HIGH

    Good value: >50 MP

    200 MP & 50 MP & 50 MP & 50 MP
    Xiaomi 15 Ultra (16GB + 512GB) has a main camera resolution of 200 MP & 50 MP & 50 MP & 50 MP MP which is higher than that of 99.9% of smartphones of smartphones.
    Main camera aperture
    What it is: The size of the lens opening (f-stop) that controls light entry. A lower f-number indicates a wider aperture, allowing better low-light shots.
    When it matters: When you want better low-light performance or a natural background blur effect.

    Importance: HIGH

    f/1.63 & f/1.8 & f/2.2 & f/2.6
    Xiaomi 15 Ultra (16GB + 512GB) has a main camera aperture of f/1.63 & f/1.8 & f/2.2 & f/2.6 which is wider than that of 90.3% of smartphones of smartphones.
    Main camera sensor area
    What it is: The total physical surface area of the camera sensor (calculated by multiplying the number of megapixels by the square of the individual pixel size). A larger area captures more light, resulting in better night photos and less digital noise.
    When it matters: When you want to capture clear, detailed photos in low-light conditions with minimal grain and achieve a natural, professional-looking background blur for portraits.

    Importance: HIGH

    Good value: >60

    128 mm²
    Xiaomi 15 Ultra (16GB + 512GB) has a main camera sensor area of 128 mm² which is larger than the main camera sensor area of 99% of smartphones and equal to that of 0.9% of smartphones.
    Main camera pixel size
    What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.
    When it matters: When you shoot in low light and want reduced noise in your photos.

    Importance: MEDIUM

    Good value: ≥1.2 µm

    1.6 µm
    Xiaomi 15 Ultra (16GB + 512GB) has a main camera pixel size of 1.6 µm which is larger than in 97% of smartphones and equal to the size in 1.2% of smartphones.
    3.2 binned
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    Number of SIM slots
    What it is: The number of physical SIM cards or eSIM profiles the device can support simultaneously.
    When it matters: When you need to manage two different phone numbers or travel internationally with a local SIM.

    Importance: MEDIUM

    Good value: ≥2

    2
    Xiaomi 15 Ultra (16GB + 512GB) has 2 SIM slots, which is more than in 3.8% of smartphones and equal to the number in 96.1% of smartphones.
    Cellular module
    What it is: The hardware component capable of connecting to mobile cellular networks for voice and data.
    When it matters: When you need to stay connected to calls and internet away from Wi-Fi.

    Importance: LOW

    yes
    Xiaomi 15 Ultra (16GB + 512GB) includes a cellular module. 100% of smartphones include cellular modules.
    5G connectivity
    What it is: Support for the fifth generation of mobile network technology, offering significantly faster data speeds and lower latency.
    When it matters: When you need the fastest possible mobile data speeds for streaming and downloading on the go.

    Importance: MEDIUM

    yes
    Xiaomi 15 Ultra (16GB + 512GB) supports 5G connectivity. 66.9% of smartphones support 5G.
    LTE support
    What it is: Support for Long-Term Evolution (4G) networks, providing high-speed mobile data.
    When it matters: When you need reliable mobile internet coverage in areas where 5G isn't available.

    Importance: HIGH

    yes
    Xiaomi 15 Ultra (16GB + 512GB) supports LTE. 99.7% of smartphones include LTE connectivity.
    Wi-Fi connectivity
    What it is: The ability to connect to wireless local area networks for internet access and local networking.
    When it matters: When you want to save mobile data and connect to home or public networks.

    Importance: HIGH

    yes
    Xiaomi 15 Ultra (16GB + 512GB) supports Wi-Fi connectivity. 100% of smartphones offer Wi-Fi support.
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    Screen size
    What it is: The physical diagonal measurement of the display area, usually expressed in inches.
    When it matters: When you choose between a compact phone for one-handed use or a large screen for media.

    Importance: MEDIUM

    Good value: ≥6.6 inches

    6.73 inches
    Xiaomi 15 Ultra (16GB + 512GB) has a screen size of 6.73 inches which is larger than the screens of 65.1% of smartphones and equal to those of 0.6% of smartphones.
    Screen resolution
    What it is: The total number of pixels displayed on the screen, expressed as width x height, determining sharpness.
    When it matters: When you want crisp text and sharp details in photos and videos.

    Importance: HIGH

    1440 x 3200 px
    Xiaomi 15 Ultra (16GB + 512GB) has a screen resolution of 1440x3200 px which is higher than that of 96% of smartphones and equal to that of 2.1% of smartphones.
    Pixel density
    What it is: The concentration of pixels on the display, measured in pixels per inch (PPI), affecting image clarity.
    When it matters: When you want the image to look perfectly smooth with no visible pixels.

    Importance: HIGH

    Good value: >400 ppi

    522 ppi
    Xiaomi 15 Ultra (16GB + 512GB) has a pixel density of 522 ppi which is higher than that of 96.3% of smartphones and equal to that of 0.1% of smartphones.
    Display type
    What it is: The specific technology used for the screen panel (e.g., OLED, IPS LCD), influencing contrast, color, and efficiency.
    When it matters: When you care about vibrant colors, deep blacks, and battery efficiency.

    Importance: HIGH

    OLED/AMOLED
    Xiaomi 15 Ultra (16GB + 512GB) uses a OLED/AMOLED display type. 58.6% of smartphones use this display technology.
    Refresh rate
    What it is: The number of times per second the display updates the image, measured in Hertz (Hz); higher rates offer smoother motion.
    When it matters: When you want scrolling to feel fluid and games to look smoother.

    Importance: HIGH

    Good value: ≥120 Hz

    120 Hz
    Xiaomi 15 Ultra (16GB + 512GB) supports a refresh rate of 120 Hz which is higher than in 34.7% of smartphones and equal to that in 55.2% of smartphones.
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    Battery capacity
    What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).
    When it matters: When you want a general idea of how large the battery is physically.

    Importance: HIGH

    Good value: >5000 mAh

    6,000 mAh
    Xiaomi 15 Ultra (16GB + 512GB) has a battery capacity of 6,000 mAh which is larger than the batteries in 73.2% of smartphones and equal to those in 6.9% of smartphones.
    Charging speed
    What it is: The maximum power input supported for wired charging, measured in Watts (W).
    When it matters: When you are in a rush and need to top up your battery quickly.

    Importance: HIGH

    Good value: >60 W

    90 W
    Xiaomi 15 Ultra (16GB + 512GB) supports charging speeds of 90 W which is faster than in 86.6% of smartphones and equal to speeds in 3.5% of smartphones.
    Fast charging
    What it is: In the context of modern electronics, "Fast Charging" refers to any technology that delivers power significantly higher than the traditional USB baseline. While the industry standard for a basic charger is 5W (5V at 1A), a charger is generally classified as a fast charger if it provides at least 18W of power.
    When it matters: When you want to minimize the time your phone spends tethered to a wall outlet.

    Importance: MEDIUM

    yes
    Xiaomi 15 Ultra (16GB + 512GB) supports fast charging. 93.1% of smartphones support fast charging.
    GSMArena full wired charge time
    What it is: The time taken to charge the battery from 0% to 100% using the bundled or recommended charger, as measured by GSMArena.
    When it matters: When you want to know exactly how long it takes to charge from 0 to 100% in real-world tests.

    Importance: MEDIUM

    Good value: <45 min

    ?
    Wireless charging
    What it is: The ability to charge the battery without cables by placing the device on a compatible charging pad.
    When it matters: When you prefer the convenience of dropping your phone on a pad without fumbling with cables.

    Importance: MEDIUM

    yes
    Xiaomi 15 Ultra (16GB + 512GB) supports wireless charging. 25.3% of smartphones support wireless charging.
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    Stereo speakers
    What it is: A setup involving two or more speakers to create a left-right audio separation for immersive sound.
    When it matters: When you watch videos or play games without headphones and want immersive sound.

    Importance: MEDIUM

    yes
    Xiaomi 15 Ultra (16GB + 512GB) includes stereo speakers. 64.5% of smartphones provide stereo audio.
    3.5 mm headphone jack
    What it is: A standard analog audio port for connecting wired headphones or auxiliary cables.
    When it matters: When you prefer using traditional wired headphones without dongles or adapters.

    Importance: LOW

    no
    Xiaomi 15 Ultra (16GB + 512GB) does not include a 3.5 mm headphone jack. 45.3% of smartphones still offer this port.
    Number of microphones
    What it is: The total count of microphones on the device, used for audio recording, noise cancellation, and voice isolation.
    When it matters: When you want clear audio recording and better noise cancellation during calls.

    Importance: MEDIUM

    Good value: ≥3

    4
    Xiaomi 15 Ultra (16GB + 512GB) includes 4 microphones, which is more than in 96.9% of smartphones and equal to the number in 3.1% of smartphones.
    FM radio
    What it is: A built-in receiver allowing users to listen to local FM radio stations using wired headphones as an antenna.
    When it matters: When you want to listen to local radio stations without using mobile data.

    Importance: LOW

    no
    Xiaomi 15 Ultra (16GB + 512GB) does not include an FM radio. 33.7% of smartphones offer FM radio functionality.
    aptX Lossless
    What it is: A Bluetooth technology designed to deliver CD-quality audio without data loss during transmission.
    When it matters: When you demand CD-quality audio over Bluetooth with no loss of detail.

    Importance: LOW

    yes
    Xiaomi 15 Ultra (16GB + 512GB) supports aptX Lossless. 12.9% of smartphones provide aptX Lossless.
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    Height
    What it is: The vertical dimension of the device.
    When it matters: When you are concerned about whether the phone will fit in your pocket or purse.

    Importance: LOW

    Good value: <162 mm

    161.3 mm
    Xiaomi 15 Ultra (16GB + 512GB) has a height of 161.3 mm which is shorter than 73.1% of smartphones and equal to that of 0.7% of smartphones.
    Width
    What it is: The horizontal dimension of the device when held in portrait orientation.
    When it matters: When you care about how easy the phone is to grip and use with one hand.

    Importance: LOW

    Good value: <75 mm

    75.3 mm
    Xiaomi 15 Ultra (16GB + 512GB) has a width of 75.3 mm which is narrower than 63.5% of smartphones and equal to that of 1.6% of smartphones.
    Thickness
    What it is: The depth of the device profile, excluding the camera bump unless specified.
    When it matters: When you prefer a sleek, slim profile that slides easily into tight pockets.

    Importance: LOW

    Good value: <8 mm

    9.4 mm
    Xiaomi 15 Ultra (16GB + 512GB) has a thickness of 9.4 mm which is thicker than 84.8% of smartphones and equal to that of 0.8% of smartphones.
    Weight
    What it is: The total mass of the smartphone, affecting how heavy it feels in the hand.
    When it matters: When you want a phone that feels light in your pocket or substantial in your hand.

    Importance: MEDIUM

    Good value: <190 g

    229 g
    Xiaomi 15 Ultra (16GB + 512GB) weighs 229 g which is heavier than 85.6% of smartphones and equal to the weight of 0.6% of smartphones.
    Device volume
    What it is: The calculated total volume of the device's physical body.
    When it matters: When you want to understand the overall physical bulk of the device.

    Importance: LOW

    Good value: <98cm³

    108,675 cm³
    Xiaomi 15 Ultra (16GB + 512GB) has a device volume of 108,675 cm³ which is larger than 80.8% of smartphones and equal to that of 0.1% of smartphones.
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    Xiaomi 15 Ultra (16GB + 512GB) vs the average smartphone

    • 8 GB more RAM
      Xiaomi 15 Ultra (16GB + 512GB) has more RAM capacity than the average smartphone (16 GB vs 8 GB). The average smartphone has 8 GB of RAM.
      What it is: The amount of volatile memory available for running apps and multitasking.
      When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

      Importance: HIGH

      Good value: >12 GB

      Xiaomi 15 Ultra (16GB + 512GB) has more RAM capacity than the average smartphone (16 GB vs 8 GB). The average smartphone has 8 GB of RAM.16 GB vs 8 GB
    • 4x larger main camera sensor area
      Xiaomi 15 Ultra (16GB + 512GB) has a larger main camera sensor area than the average smartphone (128 mm² vs 32 mm²). The average main camera sensor area is 32 mm².
      What it is: The total physical surface area of the camera sensor (calculated by multiplying the number of megapixels by the square of the individual pixel size). A larger area captures more light, resulting in better night photos and less digital noise.
      When it matters: When you want to capture clear, detailed photos in low-light conditions with minimal grain and achieve a natural, professional-looking background blur for portraits.

      Importance: HIGH

      Good value: >60

      Xiaomi 15 Ultra (16GB + 512GB) has a larger main camera sensor area than the average smartphone (128 mm² vs 32 mm²). The average main camera sensor area is 32 mm².128 mm² vs 32 mm²
    • Has optical image stabilization
      Xiaomi 15 Ultra (16GB + 512GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
      What it is: A hardware mechanism that physically moves the camera lens or sensor to counteract hand shakiness and reduce blur in photos and videos.
      When it matters: When you want to reduce blur in photos and shake in videos, especially in low light.

      Importance: HIGH

      Xiaomi 15 Ultra (16GB + 512GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
    • Supports wireless charging
      Xiaomi 15 Ultra (16GB + 512GB) supports wireless charging, the average smartphone does not. 25.3% of smartphones are wireless charging compatible.
      What it is: The ability to charge the battery without cables by placing the device on a compatible charging pad.
      When it matters: When you prefer the convenience of dropping your phone on a pad without fumbling with cables.

      Importance: MEDIUM

      Xiaomi 15 Ultra (16GB + 512GB) supports wireless charging, the average smartphone does not. 25.3% of smartphones are wireless charging compatible.
    • Higher screen resolution
      Xiaomi 15 Ultra (16GB + 512GB) has a higher screen resolution than the average smartphone (1440x3200 px vs 1080x2400 px). The average smartphone resolution is 1080x2400 px.
      What it is: The total number of pixels displayed on the screen, expressed as width x height, determining sharpness.
      When it matters: When you want crisp text and sharp details in photos and videos.

      Importance: HIGH

      Xiaomi 15 Ultra (16GB + 512GB) has a higher screen resolution than the average smartphone (1440x3200 px vs 1080x2400 px). The average smartphone resolution is 1080x2400 px.1440x3200 px vs 1080x2400 px
    • 50% smaller process node
      Xiaomi 15 Ultra (16GB + 512GB) uses a smaller process node than the average smartphone (3 nm vs 6 nm). The average process node size is 6 nm.
      What it is: The size of the manufacturing process used to create the chip's transistors, measured in nanometers (nm). Smaller nodes generally indicate more advanced, power-efficient chips.
      When it matters: When you want a chipset that is more power-efficient and generates less heat.

      Importance: HIGH

      Good value: <6 nm

      Xiaomi 15 Ultra (16GB + 512GB) uses a smaller process node than the average smartphone (3 nm vs 6 nm). The average process node size is 6 nm.3 nm vs 6 nm
    • Higher-resolution main camera
      Xiaomi 15 Ultra (16GB + 512GB) has a higher main camera resolution than the average smartphone (200 MP & 50 MP & 50 MP & 50 MP vs 50 MP & 8 MP). The average smartphone main camera has 50 MP & 8 MP megapixels.
      What it is: The resolution of the primary rear camera sensor, measured in millions of pixels (MP). Higher megapixels can capture more detail.
      When it matters: When you want to capture high-resolution images that can be cropped or printed large.

      Importance: HIGH

      Good value: >50 MP

      Xiaomi 15 Ultra (16GB + 512GB) has a higher main camera resolution than the average smartphone (200 MP & 50 MP & 50 MP & 50 MP vs 50 MP & 8 MP). The average smartphone main camera has 50 MP & 8 MP megapixels.200 MP & 50 MP & 50 MP & 50 MP vs 50 MP & 8 MP
    • 2.73x faster charging speed
      Xiaomi 15 Ultra (16GB + 512GB) supports a faster charging speed than the average smartphone (90 W vs 33 W). The average charging speed is 33 W.
      What it is: The maximum power input supported for wired charging, measured in Watts (W).
      When it matters: When you are in a rush and need to top up your battery quickly.

      Importance: HIGH

      Good value: >60 W

      Xiaomi 15 Ultra (16GB + 512GB) supports a faster charging speed than the average smartphone (90 W vs 33 W). The average charging speed is 33 W.90 W vs 33 W
    • 8 GB more RAM
      Xiaomi 15 Ultra (16GB + 512GB) has more RAM capacity than the average smartphone (16 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    • 50% smaller process node
      Xiaomi 15 Ultra (16GB + 512GB) uses a smaller process node than the average smartphone (3 nm vs 6 nm). The average process node size is 6 nm.
    • 3.67x higher Geekbench 6 multi-core benchmark score
      Xiaomi 15 Ultra (16GB + 512GB) scores better in Geekbench 6 multi-core than the average smartphone (9,293 vs 2,533). The average smartphone scores 2,533 in multi-core.
    • 80% higher CPU boost clock speed
      Xiaomi 15 Ultra (16GB + 512GB) has a higher CPU boost clock speed than the average smartphone (4.3 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    • 3.32x higher memory bandwidth
      Xiaomi 15 Ultra (16GB + 512GB) has higher memory bandwidth than the average smartphone (85.1 GB/s vs 25.6 GB/s). The average memory bandwidth is 25.6 GB/s.
    • Higher CPU base clock speed
      Xiaomi 15 Ultra (16GB + 512GB) has a higher CPU base clock speed than the average smartphone (2x4.32 GHz & 6x3.53 GHz vs 2x2.2 GHz & 6x2 GHz). The average smartphone has a base clock speed of 2x2.2 GHz & 6x2 GHz.
    • 71.4% higher maximum RAM
      Xiaomi 15 Ultra (16GB + 512GB) supports more maximum RAM than the average smartphone (24 GB vs 14 GB). The average smartphone supports 14 GB RAM.
    • 3x higher PassMark single-core benchmark
      Xiaomi 15 Ultra (16GB + 512GB) has a better PassMark single-core score than the average smartphone (2,960 vs 988). The average single-core score is 988.
    • Better processor
      Xiaomi 15 Ultra (16GB + 512GB) features a better processor than the average smartphone (Qualcomm Snapdragon 8 Elite vs Qualcomm Snapdragon 7 Gen 3).
    • 92.7% faster memory speed
      Xiaomi 15 Ultra (16GB + 512GB) supports faster memory speed than the average smartphone (5,300 MHz vs 2,750 MHz). The average smartphone supports 2,750 MHz memory speed.
    • Newer DDR memory version
      Xiaomi 15 Ultra (16GB + 512GB) supports a newer DDR version than the average smartphone (5 vs 4). The average DDR version is 4.
    • 6x more shader units
      Xiaomi 15 Ultra (16GB + 512GB) features more shader units than the average smartphone (1,536 vs 256). The average smartphone has 256 shader units.
    • 2x more storage
      Xiaomi 15 Ultra (16GB + 512GB) offers more internal storage than the average smartphone (512 GB vs 256 GB). The average smartphone provides 256 GB of internal storage.
    • 2x more L3 cache
      Xiaomi 15 Ultra (16GB + 512GB) has more L3 cache than the average smartphone (8,192 KB vs 4,096 KB). The average L3 cache is 4,096 KB.
    • 15.8% faster GPU clock
      Xiaomi 15 Ultra (16GB + 512GB) has a higher GPU frequency than the average smartphone (1,100 MHz vs 950 MHz). The average smartphone GPU frequency is 950 MHz.
    • Supports ECC memory
      Xiaomi 15 Ultra (16GB + 512GB) supports ECC memory, the average smartphone does not. 2.4% of smartphones support ECC.
    • Supports newer OpenCL version
      Xiaomi 15 Ultra (16GB + 512GB) supports a newer OpenCL version than the average smartphone (3 vs 2.0). The average version is 2.0.
    • Higher on-device AI tier
      Xiaomi 15 Ultra (16GB + 512GB) runs on the productivity AI tier, while the average smartphone runs on fundamental, enabling stronger on-device AI features.
    • Allows app offloading
      Xiaomi 15 Ultra (16GB + 512GB) allows app offloading, the average smartphone does not. 47.9% of smartphones support this feature.
    • Includes cross-site tracking protection
      Xiaomi 15 Ultra (16GB + 512GB) supports cross-site tracking prevention, the average smartphone does not. 32.2% of smartphones include this feature.
    • Newer Android version
      Xiaomi 15 Ultra (16GB + 512GB) features a newer Android version than the average smartphone (Android 15 vs Android 14). The average version is Android 14.
    • 4x larger main camera sensor area
      Xiaomi 15 Ultra (16GB + 512GB) has a larger main camera sensor area than the average smartphone (128 mm² vs 32 mm²). The average main camera sensor area is 32 mm².
    • Has optical image stabilization
      Xiaomi 15 Ultra (16GB + 512GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
    • Higher-resolution main camera
      Xiaomi 15 Ultra (16GB + 512GB) has a higher main camera resolution than the average smartphone (200 MP & 50 MP & 50 MP & 50 MP vs 50 MP & 8 MP). The average smartphone main camera has 50 MP & 8 MP megapixels.
    • Better main camera video
      Xiaomi 15 Ultra (16GB + 512GB) records better main camera video than the average smartphone. 44.2x of smartphones support 4K or higher.
    • 0.8 µm larger main camera pixel size
      Xiaomi 15 Ultra (16GB + 512GB) has a larger main camera pixel size than the average smartphone (1.6 µm vs 0.8 µm). The average pixel size is 0.8 µm.
    • 27.5% higher DxOMark Mobile score
      Xiaomi 15 Ultra (16GB + 512GB) has a higher DxOMark Mobile score than the average smartphone (153 vs 120). The average smartphone scores 120.
    • Supports laser autofocus
      Xiaomi 15 Ultra (16GB + 512GB) features laser autofocus, the average smartphone does not. 21.4% of smartphones include laser AF.
    • Supports HDR10 video recording
      Xiaomi 15 Ultra (16GB + 512GB) supports HDR10 video recording, the average smartphone does not. 36.1% of smartphones support HDR10.
    • Supports RAW photo capture
      Xiaomi 15 Ultra (16GB + 512GB) supports RAW photo capture, the average smartphone does not. 37.1% of smartphones allow RAW files.
    • Has a dual-tone LED flash
      Xiaomi 15 Ultra (16GB + 512GB) features a dual-tone LED flash, the average smartphone does not. 41.4% of smartphones include dual-tone flash.
    • Higher front camera megapixels
      Xiaomi 15 Ultra (16GB + 512GB) has more front camera megapixels than the average smartphone (32 MP vs 16 MP). The average front camera has 16 MP megapixels.
    • Supports Dolby Vision video recording
      Xiaomi 15 Ultra (16GB + 512GB) supports Dolby Vision video recording, the average smartphone does not. 10.7% of smartphones support Dolby Vision.
    • 1 more flash LEDs
      Xiaomi 15 Ultra (16GB + 512GB) has more flash LEDs than the average smartphone (2 vs 1). The average smartphone has 1 flash LEDs.
    • Wider main camera aperture
      Xiaomi 15 Ultra (16GB + 512GB) has a wider main camera aperture than the average smartphone (f/1.63 & f/1.8 & f/2.2 & f/2.6 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average aperture value is f/1.8 & f/2.2 & f/2.4 & f/2.4.
    • Supports 360° panorama
      Xiaomi 15 Ultra (16GB + 512GB) can capture 360° panoramas, the average smartphone cannot. 25.1% of smartphones support 360° panoramas.
    • Wider front camera aperture
      Xiaomi 15 Ultra (16GB + 512GB) has a wider front camera aperture than the average smartphone (f/2.0 vs f/2.2). The average aperture is f/2.2.
    • Allows manual shutter speed
      Xiaomi 15 Ultra (16GB + 512GB) allows manual shutter speed control, the average smartphone does not. 29.7% of smartphones include this.
    • Newer Wi-Fi version
      Xiaomi 15 Ultra (16GB + 512GB) supports a newer Wi-Fi version than the average smartphone (Wi-Fi 7 (802.11be), Wi-Fi 6E (802.11ax), Wi-Fi 6 (802.11ax), Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n) vs Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n)). The average smartphone uses Wi-Fi Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n).
    • Newer USB version
      Xiaomi 15 Ultra (16GB + 512GB) supports a newer USB version than the average smartphone (3.2 vs 2.0). The average version is USB 2.0.
    • Supports satellite SOS
      Xiaomi 15 Ultra (16GB + 512GB) supports satellite SOS functionality, the average smartphone does not. 8.1% of smartphones offer satellite emergency services.
    • Newer Bluetooth version
      Xiaomi 15 Ultra (16GB + 512GB) supports a newer Bluetooth version than the average smartphone (6 vs 5.2). The average version is Bluetooth 5.2.
    • 1 more external displays supported
      Xiaomi 15 Ultra (16GB + 512GB) supports more external displays than the average smartphone (2 vs 1). The average smartphone supports 1 external displays.
    • Has a barometer
      Xiaomi 15 Ultra (16GB + 512GB) features a barometer, the average smartphone does not. 20% of smartphones include a barometer.
    • Has an infrared sensor
      Xiaomi 15 Ultra (16GB + 512GB) includes an infrared sensor, the average smartphone does not. 33.3% of smartphones feature an IR blaster.
    • Higher screen resolution
      Xiaomi 15 Ultra (16GB + 512GB) has a higher screen resolution than the average smartphone (1440x3200 px vs 1080x2400 px). The average smartphone resolution is 1080x2400 px.
    • 2,200 nits higher peak brightness
      Xiaomi 15 Ultra (16GB + 512GB) has a higher peak brightness than the average smartphone (3,200 nits vs 1,000 nits). The average peak brightness is 1,000 nits.
    • Higher contrast ratio
      Xiaomi 15 Ultra (16GB + 512GB) has a higher contrast ratio than the average smartphone (8000000:1 vs 1000000:1). The average smartphone contrast ratio is 1000000:1.
    • 32.2% higher pixel density
      Xiaomi 15 Ultra (16GB + 512GB) has a higher pixel density than the average smartphone (522 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
    • Better display glass type
      Xiaomi 15 Ultra (16GB + 512GB) features a better display glass type than the average smartphone (Xiaomi Shield Glass 2.0 vs Corning Gorilla Glass 5). The average smartphone uses Corning Gorilla Glass 5 protection.
    • Supports Dolby Vision support
      Xiaomi 15 Ultra (16GB + 512GB) supports Dolby Vision, the average smartphone does not. 17.4% of smartphones are Dolby Vision compatible.
    • Supports HDR10 support
      Xiaomi 15 Ultra (16GB + 512GB) supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
    • Supports HDR10+ support
      Xiaomi 15 Ultra (16GB + 512GB) supports HDR10+, the average smartphone does not. 21.9% of smartphones include HDR10+ support.
    • Has an always-on display
      Xiaomi 15 Ultra (16GB + 512GB) features an always-on display, the average smartphone does not. 49.1% of smartphones offer always-on functionality.
    • 0.06 inches larger screen size
      Xiaomi 15 Ultra (16GB + 512GB) has a larger screen size than the average smartphone (6.7 inches vs 6.67 inches). The average smartphone screen is 6.67 inches.
    • 25% higher touch sampling rate
      Xiaomi 15 Ultra (16GB + 512GB) has a higher touch sampling rate than the average smartphone (300 Hz vs 240 Hz). The average touch sampling rate is 240 Hz.
    • Has a curved display
      Xiaomi 15 Ultra (16GB + 512GB) features a curved display, the average smartphone does not. 24.4% of smartphones have curved screens.
    • Supports wireless charging
      Xiaomi 15 Ultra (16GB + 512GB) supports wireless charging, the average smartphone does not. 25.3% of smartphones are wireless charging compatible.
    • 2.73x faster charging speed
      Xiaomi 15 Ultra (16GB + 512GB) supports a faster charging speed than the average smartphone (90 W vs 33 W). The average charging speed is 33 W.
    • 4x faster wireless charging speed
      Xiaomi 15 Ultra (16GB + 512GB) supports a faster wireless charging speed than the average smartphone (80 W vs 20 W). The average speed is 20 W.
    • 20% larger battery capacity
      Xiaomi 15 Ultra (16GB + 512GB) has a larger battery capacity than the average smartphone (6,000 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
    • Supports reverse wireless charging
      Xiaomi 15 Ultra (16GB + 512GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
    • Higher GSMArena battery life score
      Xiaomi 15 Ultra (16GB + 512GB) has a higher GSMArena battery life score than the average smartphone (16:13 hour/s vs 13:30 hour/s). The average score is 13:30 hour/s.
    • 2 more microphone/s
      Xiaomi 15 Ultra (16GB + 512GB) has more microphones than the average smartphone (4 vs 2). The average smartphone has 2 microphones.
    • Supports aptX Lossless
      Xiaomi 15 Ultra (16GB + 512GB) supports aptX Lossless, the average smartphone does not. 12.9% of smartphones include aptX Lossless support.
    • Supports aptX Adaptive
      Xiaomi 15 Ultra (16GB + 512GB) supports aptX Adaptive, the average smartphone does not. 34.3% of smartphones include aptX Adaptive support.
    • Better IP rating
      Xiaomi 15 Ultra (16GB + 512GB) has a better IP rating than the average smartphone (IP68 vs IP67). The average IP rating is IP67.
    • 2.3 mm shorter
      Xiaomi 15 Ultra (16GB + 512GB) is shorter than the average smartphone (161.3 mm vs 163.6 mm). The average smartphone height is 163.6 mm.
    • 0.7 mm narrower
      Xiaomi 15 Ultra (16GB + 512GB) is narrower than the average smartphone (75.3 mm vs 76 mm). The average smartphone width is 76 mm.
    • No live text recognition
      Xiaomi 15 Ultra (16GB + 512GB) does not support live text recognition, the average smartphone does. 51.1% of smartphones offer real-time text recognition.
    • No memory card slot
      Xiaomi 15 Ultra (16GB + 512GB) does not have a memory card slot, the average smartphone does. 53.5% of smartphones feature expandable storage.
    • 16.7% heavier
      Xiaomi 15 Ultra (16GB + 512GB) is heavier than the average smartphone (229 g vs 196.2 g). The average smartphone weighs 196.2 g.
    • 1.1 mm thicker
      Xiaomi 15 Ultra (16GB + 512GB) is thicker than the average smartphone (9.4 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.
    • 11.1% larger volume
      Xiaomi 15 Ultra (16GB + 512GB) has a larger volume than the average smartphone (108,675 cm³ vs 97,800 cm³). The average smartphone volume is 97,800 cm³.
    • No memory card slot
      Xiaomi 15 Ultra (16GB + 512GB) does not have a memory card slot, the average smartphone does. 53.5% of smartphones feature expandable storage.
      What it is: A physical slot, usually for microSD cards, allowing users to expand the device's storage capacity.
      When it matters: When you want to cheaply expand your storage for photos, music, and movies.

      Importance: LOW

      Xiaomi 15 Ultra (16GB + 512GB) does not have a memory card slot, the average smartphone does. 53.5% of smartphones feature expandable storage.
    • No live text recognition
      Xiaomi 15 Ultra (16GB + 512GB) does not support live text recognition, the average smartphone does. 51.1% of smartphones offer real-time text recognition.
      What it is: A feature that can identify and extract text from images, camera viewfinder, or documents in real-time for copying, translating, or other actions.
      When it matters: When you need to quickly copy text from a physical document or sign using your camera.

      Importance: MEDIUM

      Xiaomi 15 Ultra (16GB + 512GB) does not support live text recognition, the average smartphone does. 51.1% of smartphones offer real-time text recognition.
    • 16.7% heavier
      Xiaomi 15 Ultra (16GB + 512GB) is heavier than the average smartphone (229 g vs 196.2 g). The average smartphone weighs 196.2 g.
      What it is: The total mass of the smartphone, affecting how heavy it feels in the hand.
      When it matters: When you want a phone that feels light in your pocket or substantial in your hand.

      Importance: MEDIUM

      Good value: <190 g

      Xiaomi 15 Ultra (16GB + 512GB) is heavier than the average smartphone (229 g vs 196.2 g). The average smartphone weighs 196.2 g.229 g vs 196.2 g
    • 1.1 mm thicker
      Xiaomi 15 Ultra (16GB + 512GB) is thicker than the average smartphone (9.4 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.
      What it is: The depth of the device profile, excluding the camera bump unless specified.
      When it matters: When you prefer a sleek, slim profile that slides easily into tight pockets.

      Importance: LOW

      Good value: <8 mm

      Xiaomi 15 Ultra (16GB + 512GB) is thicker than the average smartphone (9.4 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.9.4 mm vs 8.3 mm
    • 4.08x more expensive
      Xiaomi 15 Ultra (16GB + 512GB) is more expensive than the average smartphone (£1,060 vs £260).
      Xiaomi 15 Ultra (16GB + 512GB) is more expensive than the average smartphone (£1,060 vs £260).£1,060 vs £260
    • 11.1% larger volume
      Xiaomi 15 Ultra (16GB + 512GB) has a larger volume than the average smartphone (108,675 cm³ vs 97,800 cm³). The average smartphone volume is 97,800 cm³.
      What it is: The calculated total volume of the device's physical body.
      When it matters: When you want to understand the overall physical bulk of the device.

      Importance: LOW

      Good value: <98cm³

      Xiaomi 15 Ultra (16GB + 512GB) has a larger volume than the average smartphone (108,675 cm³ vs 97,800 cm³). The average smartphone volume is 97,800 cm³.108675 cm³ vs 97800 cm³

    Graphic comparison of Xiaomi 15 Ultra (16GB + 512GB) and other smartphones

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    Third-party reviews

    (Reviews last updated: August 2026)

    What customers like about Xiaomi 15 Ultra (16GB + 512GB)?

    • Exceptional and versatile quad-camera system, particularly for zoom, detail retention, and professional 'Pro' mode results.
    • Stunning, bright (3200-nit peak brightness) 6.73-inch WQHD+ AMOLED display with great color accuracy, smoothness, and outdoor visibility.
    • Top-tier performance from the Snapdragon 8 Elite processor, handling heavy gaming and multitasking without lag.
    • Fast charging capabilities (90W wired, 80W wireless) and generally solid battery life that lasts a full day of heavy use for most users.
    • Premium and ergonomic design, with a comfortable in-hand feel compared to some competitors.
    • High-quality stereo speakers offering clear, loud, and immersive audio.
    • The optional Photography Kit enhances the experience with a camera grip, extra battery, and physical controls.
    • Fast and reliable ultrasonic fingerprint sensor.

    What customers dislike about Xiaomi 15 Ultra (16GB + 512GB)?

    • The massive and bulky camera bump makes the phone top-heavy, causes wobbling on flat surfaces, and can make it awkward to hold or fit into some accessories like gimbals or controllers.
    • Inconsistent camera performance in auto mode, often requiring manual adjustments or the 'Pro' mode to achieve the best results.
    • Relatively underwhelming battery longevity during heavy use (e.g., long video recording, photography trips) despite the large capacity.
    • Software (HyperOS) is considered somewhat plain, uninspired, and has a high learning curve with some hidden features or occasional minor bugs.
    • High price point and limited availability in some markets like the US.
    • Removal of the variable aperture feature present in its predecessor is a disappointment for advanced photographers.
    • Only offers four years of OS updates (and six years of security updates), which is less than some major competitors.

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