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Samsung Galaxy S21 Ultra 5G (12GB + 128GB) Review | 197 Data compared

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  • Avg. price: ~£340
  • RAM capacity: 12 GB
  • Internal storage: 128 GB
  • Screen size: 6.8 inches
  • Main camera megapixels: 108 MP & 12 MP & 10 MP & 10 MP

Samsung Galaxy S21 Ultra 5G (12GB + 128GB) review. Compare 197 technical specifications and user reviews to see how it ranks among smartphones and if it's worth buying.

8.4

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%

8.3

Technical Score

10.0%

8.6

User score

Excellent
8.3

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%

8.2

Performance & Hardware

18.0%

9.0

Camera

15.0%

8.1

Display

15.0%

7.8

Battery

10.0%

8.8

Software

10.0%

8.7

Connectivity

4.0%

7.5

Audio

3.0%

8.0

Design

Excellent
8.6

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%

8.0

User reviews

30.0%

10

Popularity

Excellent
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    Best prices

    Best rankings

    ?

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

    Technical Specifications of smartphone Samsung Galaxy S21 Ultra 5G (12GB + 128GB)

    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%

    8.2

    Performance & Hardware

    18.0%

    9.0

    Camera

    15.0%

    8.1

    Display

    15.0%

    7.8

    Battery

    10.0%

    8.8

    Software

    10.0%

    8.7

    Connectivity

    4.0%

    7.5

    Audio

    3.0%

    8.0

    Design

    8.3
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a technical score of 8.34 points, which is higher than 77.7% 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%

    8.0

    User reviews

    30.0%

    10

    Popularity

    8.6
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a user score of 8.62 points, which is higher than 75.7% 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.
    10
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a popularity of 10 points, which is higher than 76.3% of smartphones.
    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%

    8.4

    Overall score

    40.0%

    8.7

    Price

    8.5
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a quality-to-price ratio of 8.5 points, which is higher than 84.6% of smartphones.
    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

    Samsung
    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

    Samsung Exynos 2100
    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

    12 GB
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a RAM capacity of 12 GB which is larger than the RAM capacity of 59% of smartphones and equal to that of 24.3% 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

    128 GB
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has an internal storage capacity of 128 GB which is smaller than the storage of 61.1% of smartphones and equal to that of 28.4% 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

    2.9 GHz
    The CPU boost clock speed of Samsung Galaxy S21 Ultra 5G (12GB + 128GB) is 2.9 GHz which is higher than the boost speed of 74.2% of smartphones and equal to that of 0.4% 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
    Android 14
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) uses the Android operating system, which outperforms that of 1% of smartphones.
    Android 14
    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 14
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) runs Android version Android 14 which is newer than that found in 49.1% of smartphones and equal to that in 21.2% 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

    108 MP & 12 MP & 10 MP & 10 MP
    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/1.8 & f/2.2 & f/4.9 & f/2.4
    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

    69.1 mm²
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a main camera sensor area of 69.1 mm² which is larger than the main camera sensor area of 88.8% 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

    0.8 µm
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a main camera pixel size of 0.8 µm which is larger than in 35.5% of smartphones and equal to the size in 21.9% of smartphones.
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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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has 2 SIM slots, which is more than in 3.9% of smartphones and equal to the number in 96% 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

    6.8 inches
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a screen size of 6.8 inches which is larger than the screens of 84.3% of smartphones and equal to those of 4.6% 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
    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

    515 ppi
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a pixel density of 515 ppi which is higher than that of 95% of smartphones and equal to that of 0.2% 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

    5000 mAh
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a battery capacity of 5000 mAh which is larger than the batteries in 28.3% of smartphones and equal to those in 28.8% 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

    25 W
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports charging speeds of 25 W which is slower than in 66.9% of smartphones and equal to speeds in 5.3% 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports wireless charging. 25.3% of smartphones support wireless charging.
    Show more
    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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not include a 3.5 mm headphone jack. 45.4% 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

    3
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) includes 3 microphones, which is more than in 77.2% of smartphones and equal to the number in 19.7% 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

    no
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not support 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

    165.1 mm
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a height of 165.1 mm which is taller than 68.2% 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

    75.6 mm
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a width of 75.6 mm which is narrower than 57.6% of smartphones and equal to that of 1.9% 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

    8.9 mm
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a thickness of 8.9 mm which is thicker than 75.5% of smartphones and equal to that of 4.3% 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
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

    99000 cm³
    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a device volume of 99000 cm³ which is larger than 58.4% of smartphones and equal to that of 0.3% of smartphones.
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    Samsung Galaxy S21 Ultra 5G (12GB + 128GB) vs the average smartphone

    • Has optical image stabilization
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
    • Supports wireless charging
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports wireless charging, the average smartphone does not. 25.3% of smartphones are wireless charging compatible.
    • 2.16x larger main camera sensor area
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a larger main camera sensor area than the average smartphone (69.1 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a larger main camera sensor area than the average smartphone (69.1 mm² vs 32 mm²). The average main camera sensor area is 32 mm².69.1 mm² vs 32.0 mm²
    • Better main camera video
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) records better main camera video than the average smartphone. 44.20x of smartphones support 4K or higher.
      What it is: The maximum resolution and frame rate at which the main rear camera can record video.
      When it matters: When you want to record memories or content in high definition or 4K.

      Importance: MEDIUM

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) records better main camera video than the average smartphone. 44.20x of smartphones support 4K or higher.4320x 24 fps vs 2160x 30 fps
    • 30.4% higher pixel density
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher pixel density than the average smartphone (515 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
      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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher pixel density than the average smartphone (515 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.515 ppi vs 395 ppi
    • Supports reverse wireless charging
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
      What it is: A feature that allows the smartphone to act as a wireless charging pad for other devices like earbuds.
      When it matters: When your earbuds or smartwatch die and you need to charge them using your phone.

      Importance: LOW

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
    • 0.13 inches larger screen size
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a larger screen size than the average smartphone (6.8 inches vs 6.67 inches). The average smartphone screen is 6.67 inches.
      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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a larger screen size than the average smartphone (6.8 inches vs 6.67 inches). The average smartphone screen is 6.67 inches.6.8 inches vs 6.67 inches
    • Newer DDR memory version
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports a newer DDR version than the average smartphone (5.0 vs 4.0). The average DDR version is 4.
      What it is: The generation of DDR (Double Data Rate) RAM used in the device (e.g., LPDDR4X, LPDDR5). Newer versions offer better speed and power efficiency.
      When it matters: When you want the latest balance of high speed and improved power efficiency.

      Importance: MEDIUM

      Good value: 5

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports a newer DDR version than the average smartphone (5.0 vs 4.0). The average DDR version is 4.5.0 vs 4.0
    • Newer DDR memory version
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports a newer DDR version than the average smartphone (5.0 vs 4.0). The average DDR version is 4.
    • 4 GB more RAM
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has more RAM capacity than the average smartphone (12 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    • 50% lower TDP
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a lower TDP than the average smartphone (9 W vs 6 W). The average TDP for smartphones is 6 W.
    • 2 more memory channels
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has more memory channels than the average smartphone (4 vs 2). The average smartphone has 2 memory channels.
    • 20.8% higher CPU boost clock speed
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher CPU boost clock speed than the average smartphone (2.9 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    • 2x higher memory bandwidth
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has higher memory bandwidth than the average smartphone (51.2 GB/s vs 25.6 GB/s). The average memory bandwidth is 25.6 GB/s.
    • 16.7% smaller process node
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) uses a smaller process node than the average smartphone (5 nm vs 6 nm). The average process node size is 6 nm.
    • 31.8% higher Geekbench 6 multi-core benchmark score
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) scores better in Geekbench 6 multi-core than the average smartphone (3,339 vs 2,533). The average smartphone scores 2,533 in multi-core.
    • 14.3% higher maximum RAM
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports more maximum RAM than the average smartphone (16 GB vs 14 GB). The average smartphone supports 14 GB RAM.
    • 16.4% faster memory speed
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports faster memory speed than the average smartphone (3200 MHz vs 2750 MHz). The average smartphone supports 2750 MHz memory speed.
    • 43.2% higher 3DMark Wild Life Unlimited benchmark
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) scores higher in 3DMark Wild Life Unlimited than the average smartphone (5,479 vs 3,825). The average smartphone scores 3,825.
    • Higher on-device AI tier
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) runs on the productivity AI tier, while the average smartphone runs on fundamental , enabling stronger on-device AI features.
    • Allows app offloading
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) allows app offloading, the average smartphone does not. 47.9% of smartphones support this feature.
    • Supports desktop mode
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) includes desktop mode, the average smartphone does not. 9.5% of smartphones support desktop functionality.
    • Includes cross-site tracking protection
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports cross-site tracking prevention, the average smartphone does not. 32.2% of smartphones include this feature.
    • Has optical image stabilization
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has optical image stabilization (OIS), the average smartphone does not. 48.3% of smartphones feature OIS.
    • 2.16x larger main camera sensor area
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a larger main camera sensor area than the average smartphone (69.1 mm² vs 32 mm²). The average main camera sensor area is 32 mm².
    • Better main camera video
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) records better main camera video than the average smartphone. 44.20x of smartphones support 4K or higher.
    • Uses a BSI sensor
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) uses a BSI sensor, the average smartphone does not. 40.1% of smartphones include BSI sensors.
    • Supports laser autofocus
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) features laser autofocus, the average smartphone does not. 21.4% of smartphones include laser AF.
    • Supports HDR10 video recording
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports HDR10 video recording, the average smartphone does not. 36.1% of smartphones support HDR10.
    • Supports RAW photo capture
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports RAW photo capture, the average smartphone does not. 37.1% of smartphones allow RAW files.
    • Has a dual-tone LED flash
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) features a dual-tone LED flash, the average smartphone does not. 41.4% of smartphones include dual-tone flash.
    • 1 more flash LEDs
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has more flash LEDs than the average smartphone (2 vs 1). The average smartphone has 1 flash LEDs.
    • Newer USB version
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports a newer USB version than the average smartphone (3.2 vs 2.0). The average version is USB 2.
    • Supports ANT+
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports ANT+ technology, the average smartphone does not. 5.6% of smartphones are ANT+ compatible.
    • Has a barometer
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) features a barometer, the average smartphone does not. 20% of smartphones include a barometer.
    • 30.4% higher pixel density
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher pixel density than the average smartphone (515 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
    • 0.13 inches larger screen size
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a larger screen size than the average smartphone (6.8 inches vs 6.67 inches). The average smartphone screen is 6.67 inches.
    • Supports HDR10 support
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports HDR10, the average smartphone does not. 42.7% of smartphones are HDR10 compatible.
    • Has an always-on display
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) features an always-on display, the average smartphone does not. 49.1% of smartphones offer always-on functionality.
    • Higher contrast ratio
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher contrast ratio than the average smartphone (3000000:1 vs 1000000:1 ). The average smartphone contrast ratio is 1000000:1 .
    • 34.7% higher screen brightness
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher screen brightness than the average smartphone (889 nits vs 660 nits). The average smartphone brightness is 660 nits.
    • 500 nits higher peak brightness
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher peak brightness than the average smartphone (1500 nits vs 1000 nits). The average peak brightness is 1000 nits.
    • 129.5 nits higher GSMArena max display brightness
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher GSMArena max display brightness than the average smartphone (1023 nits vs 893.5 nits). The average max brightness is 893.5 nits.
    • Supports wireless charging
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports wireless charging, the average smartphone does not. 25.3% of smartphones are wireless charging compatible.
    • Supports reverse wireless charging
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
    • 1 more microphone/s
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has more microphones than the average smartphone (3 vs 2). The average smartphone has 2 microphones.
    • Better IP rating
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a better IP rating than the average smartphone (IP68 vs IP67 ). The average IP rating is IP67 .
    • 2.5% higher French repairability index
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a higher French repairability index score than the average smartphone (8.2 vs 8.0). The average score is 8.

    Total
    Overall
    Performance & Hardware
    Software
    Camera
    Connectivity
    Display
    Battery
    Audio
    Design
    • 50% less storage
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of internal storage.
    • 10.1% slower GPU clock
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a lower GPU frequency than the average smartphone (854 MHz vs 950 MHz). The average smartphone has a GPU frequency of 950 MHz.
    • No live text recognition
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not support live text recognition, the average smartphone does. 51.1% of smartphones offer real-time text recognition.
    • 2.5% lower DxOMark Mobile score
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a lower DxOMark Mobile score than the average smartphone (117 vs 120). The average smartphone scores 120.
    • No memory card slot
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not have a memory card slot, the average smartphone does. 53.6% of smartphones feature expandable storage.
    • 50% lower touch sampling rate
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a lower touch sampling rate than the average smartphone (120 Hz vs 240 Hz). The average smartphone has a sampling rate of 240 Hz.
    • 25% slower wireless charging speed
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a slower wireless charging speed than the average smartphone (15 W vs 20 W). The average smartphone wireless charging speed is 20 W.
    • 24.2% slower charging speed
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a slower charging speed than the average smartphone (25 W vs 33 W). The average smartphone charges at 33 W.
    • 10% slower reverse wireless charging speed
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a slower reverse wireless charging speed than the average smartphone (4.5 W vs 5 W). The average smartphone speed is 5 W.
    • No aptX HD
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not support aptX HD, the average smartphone does. 50.4% of smartphones support aptX HD.
    • 16.7% heavier
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) is heavier than the average smartphone (229 g vs 196.2 g). The average smartphone weighs 196.2 g.
    • 0.6 mm thicker
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) is thicker than the average smartphone (8.9 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.
    • 1.5 mm taller
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) is taller than the average smartphone (165.1 mm vs 163.6 mm). The average smartphone has a height of 163.6 mm.
    • 50% less storage
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) offers less internal storage than the average smartphone (128 GB vs 256 GB). The average smartphone includes 256 GB of internal storage.128 GB vs 256 GB
    • No aptX HD
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not support aptX HD, the average smartphone does. 50.4% of smartphones support aptX HD.
      What it is: A Bluetooth codec capable of transmitting high-definition (24-bit) audio wirelessly.
      When it matters: When you want to stream high-definition music over Bluetooth.

      Importance: LOW

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not support aptX HD, the average smartphone does. 50.4% of smartphones support aptX HD.
    • No memory card slot
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not have a memory card slot, the average smartphone does. 53.6% 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not have a memory card slot, the average smartphone does. 53.6% of smartphones feature expandable storage.
    • 16.7% heavier
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) is heavier than the average smartphone (229 g vs 196.2 g). The average smartphone weighs 196.2 g.229.0 g vs 196.2 g
    • No live text recognition
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) does not support live text recognition, the average smartphone does. 51.1% of smartphones offer real-time text recognition.
    • 50% lower touch sampling rate
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a lower touch sampling rate than the average smartphone (120 Hz vs 240 Hz). The average smartphone has a sampling rate of 240 Hz.
      What it is: The frequency at which the screen scans for touch input, with higher rates reducing input lag in games.
      When it matters: When you play competitive games and need your inputs to register instantly.

      Importance: MEDIUM

      Good value: >300 Hz

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a lower touch sampling rate than the average smartphone (120 Hz vs 240 Hz). The average smartphone has a sampling rate of 240 Hz.120 Hz vs 240 Hz
    • 25% slower wireless charging speed
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a slower wireless charging speed than the average smartphone (15 W vs 20 W). The average smartphone wireless charging speed is 20 W.
      What it is: The maximum power input supported for wireless charging, measured in Watts (W).
      When it matters: When you want the convenience of wireless charging without the slow speeds.

      Importance: LOW

      Good value: >40 W

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) has a slower wireless charging speed than the average smartphone (15 W vs 20 W). The average smartphone wireless charging speed is 20 W.15 W vs 20 W
    • 0.6 mm thicker
      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) is thicker than the average smartphone (8.9 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

      Samsung Galaxy S21 Ultra 5G (12GB + 128GB) is thicker than the average smartphone (8.9 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.8.9 mm vs 8.3 mm
    Total
    Performance & Hardware
    Software
    Camera
    Connectivity
    Display
    Battery
    Audio
    Design

    Graphic comparison of Samsung Galaxy S21 Ultra 5G (12GB + 128GB) and other smartphones

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    Third-party reviews

    What customers like about Samsung Galaxy S21 Ultra 5G (12GB + 128GB)?

    • Exceptional and versatile camera system, including 10x optical zoom and 100x space zoom, producing stunning photos and 8K video quality.
    • Gorgeous 6.8-inch Dynamic AMOLED 2X display with a smooth, adaptive 120Hz refresh rate and high brightness, highly praised by users.
    • Excellent performance and speed thanks to the powerful Snapdragon 888 or Exynos 2100 chipset, handling multitasking and gaming with ease.
    • Generally good to excellent battery life, with the 5,000mAh capacity lasting a full day or more for many users, even with heavy use.
    • Premium design and solid build quality with a sleek matte finish that resists fingerprints.
    • Fast and accurate in-screen ultrasonic fingerprint sensor, a significant improvement over previous generations.
    • S Pen stylus support adds useful functionality for note-taking and editing, a feature new to the S series.
    • High-quality stereo speakers with Dolby Atmos support provide excellent audio output.

    What customers dislike about Samsung Galaxy S21 Ultra 5G (12GB + 128GB)?

    • Large and heavy/bulky form factor, making one-handed use and pocketability difficult for some users.
    • No microSD card slot for expandable storage, which is a major drawback for users who need extra memory for photos and videos.
    • No 3.5mm headphone jack (requiring an adapter or wireless headphones) and no charger included in the box.
    • Battery life can be inconsistent, draining quickly with heavy use of high-resolution/refresh rate settings or 5G connectivity in poor reception areas.
    • High initial price point, though its value improved as prices dropped over time.
    • Face recognition is less reliable compared to other devices, especially when wearing a mask.
    • Some users noted software glitches, bloatware (especially on carrier models), and a less intuitive interface compared to stock Android.

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    The Presse-Citron review hails the Galaxy S21 Ultra as a "masterpiece," highlighting its premium matte Phantom Black finish and a 6.8-inch Dynamic AMOLED 2X display that allows simultaneous 120Hz and Quad HD+ resolution. Key features include a versatile camera system with a 108MP main sensor, dual-telephoto lenses, and 100x Space Zoom, along with the added functionality of S Pen...Read more

    (Translated)Show original
    G
    global.techradar.com
    ?
    09/02/2021
    Samsung Galaxy S21 Ultra review - TechRadar

    The Samsung Galaxy S21 Ultra is identified by TechRadar as a top-tier Android device, featuring a 6.8-inch display that supports 120Hz at QHD+ resolution and a refined "Contour Cut" design. Key pros include an exceptional quad-camera system with superior 10x optical zoom, "Zoom Lock" AI stabilization, and S Pen support. However, the device notably lacks a microSD card slot for...Read more

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    T
    techzine.nl
    ?
    20/03/2021
    Does the Samsung Galaxy S21 Ultra offer business value?

    The Techzine review highlights the Samsung Galaxy S21 Ultra as a top-tier, luxurious device featuring a superior 6.8-inch display, enhanced S-Pen support, and high-performance capabilities. Its advanced camera system, boasting a 108MP main sensor and a versatile dual-telephoto zoom, offers excellent photo and 4K video quality. While praising the performance, the review notes...Read more

    (Translated)Show original
    A
    androidworld.nl
    ?
    28/01/2021
    Samsung Galaxy S21 Ultra review: the best phone at the top of the high-end class

    Androidworld praises the Samsung Galaxy S21 Ultra as a redemption for the brand, highlighting its 6.8-inch 120Hz WQHD+ display and premium, matte "Phantom Black" build. Key performance strengths include the efficient Exynos 2100 processor, versatile dual-telephoto camera setup, and the addition of S Pen support. However, the review notes drawbacks, including the phone's large size,...Read more

    (Translated)Show original
    F
    fwd.nl
    ?
    10/03/2021
    Samsung Galaxy S21 and S21 Ultra – Samsung at the top

    According to the review from FWD.nl, the Samsung Galaxy S21 and S21 Ultra represent a refined peak for the brand, balancing high-end performance with a more competitive pricing strategy. The review highlights a "striking new design" that integrates the camera module into the frame, with the S21 Ultra offering a premium glass build, while the standard S21 utilizes a high-quality...Read more

    (Translated)Show original
    G
    global.techradar.com
    ?
    22/01/2021
    Samsung Galaxy S21 Ultra review

    The Samsung Galaxy S21 Ultra delivers a premium experience featuring a 6.8-inch Dynamic AMOLED 2X display that supports 120Hz at Quad HD+ resolution, powered by top-tier Snapdragon 888 or Exynos 2100 processors. The device's standout camera system includes a 108MP main sensor, dual-telephoto lenses with up to 100x "Space Zoom" and "Zoom Lock" stabilization, plus 8K video recording....Read more

    (Translated)Show original
    I
    itdaily.be
    ?
    29/01/2021
    Samsung Galaxy S21 Ultra review: finally everything in one place

    The Samsung Galaxy S21 Ultra serves as a redemption for the S20, featuring a matte Phantom Black finish, a 6.8-inch Dynamic AMOLED 2X display, and improved camera integration, though its 227g-229g weight makes it difficult to hold. Key benefits include the introduction of S Pen support and a refined design, while drawbacks include the exclusion of the stylus from the box and its...Read more

    (Translated)Show original
    T
    tweakers.net
    ?
    27/01/2021
    Samsung Galaxy S21 & S21 Ultra Review - Putting on the brakes for distinction and a better price

    Tweakers.net reviews the Samsung Galaxy S21 series, highlighting a strategic shift toward lower pricing that includes notable hardware trade-offs on the base model. The S21 Ultra is positioned as the true, premium flagship with a top-tier WQHD+ 120Hz display, while the standard S21 features a polycarbonate back and 1080p resolution, which feels like a downgrade from its predecessor...Read more

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    A
    androidplanet.nl
    ?
    29/01/2021
    Samsung Galaxy S21 Ultra review: the ultimate Samsung smartphone

    The Samsung Galaxy S21 Ultra, reviewed by Android Planet, is highlighted as a powerful device featuring a superior 6.8-inch Dynamic AMOLED 2X display with 120Hz, an Exynos 2100 processor, and 12GB of RAM. Key strengths include a versatile camera system with improved autofocus, dual telephoto lenses for high-detail zoom, and robust performance. However, the device's high cost, large...Read more

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    C
    consumentenbond.nl
    ?
    01/02/2021
    Samsung Galaxy S21 Ultra 5G: First Impression

    The Samsung Galaxy S21 Ultra 5G (128GB) is a large, premium device featuring a standout "contour-cut" camera housing, a 6.8-inch Dynamic AMOLED 2X display, and S Pen support. Pros include an exceptional 120Hz display with high brightness, a powerful Exynos 2100 processor, and a versatile camera system with 10x optical zoom. Key cons involve its heavy, 227-gram weight, lack of a...Read more

    (Translated)Show original
    T
    techzine.nl
    ?
    20/03/2021
    Does the Samsung Galaxy S21 Ultra offer business value?

    The Techzine review highlights the Samsung Galaxy S21 Ultra as a top-tier, luxurious device featuring a superior 6.8-inch display, enhanced S-Pen support, and high-performance capabilities. Its advanced camera system, boasting a 108MP main sensor and a versatile dual-telephoto zoom, offers excellent photo and 4K video quality. While praising the performance, the review notes...Read more

    (Translated)Show original
    A
    androidworld.nl
    ?
    28/01/2021
    Samsung Galaxy S21 Ultra review: the best phone at the top of the high-end class

    Androidworld praises the Samsung Galaxy S21 Ultra as a redemption for the brand, highlighting its 6.8-inch 120Hz WQHD+ display and premium, matte "Phantom Black" build. Key performance strengths include the efficient Exynos 2100 processor, versatile dual-telephoto camera setup, and the addition of S Pen support. However, the review notes drawbacks, including the phone's large size,...Read more

    (Translated)Show original

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