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Oppo K12x China (12GB + 512GB) Review | 197 Data compared

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  • Avg. price: ~£250
  • RAM capacity: 12 GB
  • Internal storage: 512 GB
  • Screen size: 6.67 inches
  • Main camera megapixels: 50 MP & 2 MP

Oppo K12x China (12GB + 512GB) review. Compare 197 technical specifications and user reviews to see how it ranks among smartphones and if it's worth buying.

6.9

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%

6.9

Technical Score

10.0%

?

User score

Good
6.9

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%

7.2

Performance & Hardware

18.0%

5.8

Camera

15.0%

6.4

Display

15.0%

7.8

Battery

10.0%

7.4

Software

10.0%

7.2

Connectivity

4.0%

5.9

Audio

3.0%

7.3

Design

Good
?

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%

?

User reviews

30.0%

?

Popularity

    • No image
    No image

    Best prices

      N/A~ £250

    Best rankings

    ?

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

    Verdict

    The China version of the Oppo K12x (12GB + 512GB) is a mid-range 5G smartphone powered by the Qualcomm Snapdragon 695 5G chipset and runs Android 14 with ColorOS 14. Key features include a vibrant 6.67-inch OLED display with a 120Hz refresh rate and high peak brightness, a large 5500 mAh battery, and very fast 80W wired charging that reaches 100% in approximately 50 minutes. Photography is handled by a dual rear camera setup featuring a 50MP main sensor and a 2MP depth sensor, along with a 16MP front camera. The main pros are its impressive battery life, rapid charging speed, smooth 120Hz OLED display, and ample RAM and storage capacity. Potential cons include the use of UFS 2.2 storage (which is slower than UFS 3.0+), the lack of an ultra-wide camera lens, no 4K video recording support, the absence of NFC for contactless payments, and a hybrid SIM slot that requires sacrificing the second SIM for microSDXC storage expansion.

    Technical Specifications of smartphone Oppo K12x China (12GB + 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%

    ?

    Performance & Hardware

    18.0%

    ?

    Camera

    15.0%

    ?

    Display

    15.0%

    ?

    Battery

    10.0%

    ?

    Software

    10.0%

    ?

    Connectivity

    4.0%

    ?

    Audio

    3.0%

    ?

    Design

    6.9
    Oppo K12x China (12GB + 512GB) has a technical score of 6.87 points, which is lower than 62.7% 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%

    0.0

    User reviews

    30.0%

    1.0

    Popularity

    ?
    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.
    1.0
    Oppo K12x China (12GB + 512GB) has a popularity of 1 points, which is lower than 67.3% 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%

    6.9

    Overall score

    40.0%

    9.2

    Price

    7.6
    Oppo K12x China (12GB + 512GB) has a quality-to-price ratio of 7.6 points, which is lower than 54.9% 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

    Oppo
    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 695 5G
    Oppo K12x China (12GB + 512GB) uses the Qualcomm Snapdragon 695 5G processor model which is slower than processors in 69.9% of smartphones and equal to processors in 2.4% 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

    12 GB
    Oppo K12x China (12GB + 512GB) 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

    512 GB
    Oppo K12x China (12GB + 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

    2.2 GHz
    The CPU boost clock speed of Oppo K12x China (12GB + 512GB) is 2.2 GHz which is lower than the boost speed of 68.4% of smartphones and equal to that of 14.4% 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
    Oppo K12x China (12GB + 512GB) 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
    Oppo K12x China (12GB + 512GB) runs Android version Android 14 which is newer than that found in 49.5% of smartphones and equal to that in 21% 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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

    50 MP & 2 MP
    Oppo K12x China (12GB + 512GB) has a main camera resolution of 50 MP & 2 MP MP which is lower than that of 57.5% of smartphones and equal to that of 12.9% 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/1.8 & f/2.4
    Oppo K12x China (12GB + 512GB) has a main camera aperture of f/1.8 & f/2.4 which is narrower than that of 57.9% of smartphones and equal to that of 12.6% 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

    20.5 mm²
    Oppo K12x China (12GB + 512GB) has a main camera sensor area of 20.5 mm² which is smaller than the main camera sensor area of 76.1% of smartphones and equal to that of 12.9% 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

    0.64 µm
    Oppo K12x China (12GB + 512GB) has a main camera pixel size of 0.64 µm which is smaller than in 75.1% of smartphones and equal to the size in 18.6% of smartphones.
    1.28 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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

    6.67 inches
    Oppo K12x China (12GB + 512GB) has a screen size of 6.67 inches which is larger than the screens of 38.3% of smartphones and equal to those of 13.4% 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

    1080 x 2400 px
    Oppo K12x China (12GB + 512GB) has a screen resolution of 1080x2400 px which is higher than that of 36.3% of smartphones and equal to that of 20.4% 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

    395 ppi
    Oppo K12x China (12GB + 512GB) has a pixel density of 395 ppi which is higher than that of 41.7% of smartphones and equal to that of 8.9% 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
    Oppo K12x China (12GB + 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
    Oppo K12x China (12GB + 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

    5,500 mAh
    Oppo K12x China (12GB + 512GB) has a battery capacity of 5500 mAh which is larger than the batteries in 67.7% of smartphones and equal to those in 3% 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

    80 W
    Oppo K12x China (12GB + 512GB) supports charging speeds of 80 W which is faster than in 78.9% of smartphones and equal to speeds in 7.4% 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
    Oppo K12x China (12GB + 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

    no
    Oppo K12x China (12GB + 512GB) does not support 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
    Oppo K12x China (12GB + 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

    yes
    Oppo K12x China (12GB + 512GB) includes 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

    1
    Oppo K12x China (12GB + 512GB) has 1 microphones, which is fewer than in 89.6% of smartphones and equal to the number in 10.4% 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
    Oppo K12x China (12GB + 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

    no
    Oppo K12x China (12GB + 512GB) 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

    162.9 mm
    Oppo K12x China (12GB + 512GB) has a height of 162.9 mm which is shorter than 59.1% of smartphones and equal to that of 1.4% 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
    Oppo K12x China (12GB + 512GB) 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

    8.1 mm
    Oppo K12x China (12GB + 512GB) has a thickness of 8.1 mm which is thinner than 58.9% of smartphones and equal to that of 4.2% 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

    191 g
    Oppo K12x China (12GB + 512GB) weighs 191 g which is lighter than 62.1% of smartphones and equal to the weight of 1.3% 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

    97,200 cm³
    Oppo K12x China (12GB + 512GB) has a device volume of 97200 cm³ which is smaller than 52.1% of smartphones and equal to that of 2.2% of smartphones.
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    Oppo K12x China (12GB + 512GB) vs the average smartphone

    • 2.42x faster charging speed
      Oppo K12x China (12GB + 512GB) supports a faster charging speed than the average smartphone (80 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

      Oppo K12x China (12GB + 512GB) supports a faster charging speed than the average smartphone (80 W vs 33 W). The average charging speed is 33 W.80 W vs 33 W
    • 4 GB more RAM
      Oppo K12x China (12GB + 512GB) has more RAM capacity than the average smartphone (12 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

      Oppo K12x China (12GB + 512GB) has more RAM capacity than the average smartphone (12 GB vs 8 GB). The average smartphone has 8 GB of RAM.12 GB vs 8 GB
    • 10% larger battery capacity
      Oppo K12x China (12GB + 512GB) has a larger battery capacity than the average smartphone (5,500 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
      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

      Oppo K12x China (12GB + 512GB) has a larger battery capacity than the average smartphone (5,500 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.5500 mAh vs 5000 mAh
    • Has an always-on display
      Oppo K12x China (12GB + 512GB) features an always-on display, the average smartphone does not. 49.1% of smartphones offer always-on functionality.
      What it is: A feature that keeps a portion of the screen active to show time, date, and notifications while the device is asleep.
      When it matters: When you want to glance at the time or notifications without touching the phone.

      Importance: MEDIUM

      Oppo K12x China (12GB + 512GB) features an always-on display, the average smartphone does not. 49.1% of smartphones offer always-on functionality.
    • 2x more storage
      Oppo K12x China (12GB + 512GB) offers more internal storage than the average smartphone (512 GB vs 256 GB). The average smartphone provides 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

      Oppo K12x China (12GB + 512GB) offers more internal storage than the average smartphone (512 GB vs 256 GB). The average smartphone provides 256 GB of internal storage.512 GB vs 256 GB
    • Has a 3.5 mm headphone jack
      Oppo K12x China (12GB + 512GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.3% of smartphones include a standard 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

      Oppo K12x China (12GB + 512GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.3% of smartphones include a standard headphone jack.
    • 1 more flash LEDs
      Oppo K12x China (12GB + 512GB) has more flash LEDs than the average smartphone (2 vs 1). The average smartphone has 1 flash LEDs.
      What it is: The count of individual Light Emitting Diodes used in the camera flash module, often to provide brighter light or better color balance.
      When it matters: When you need brighter, more even illumination for your photos in dark settings.

      Importance: LOW

      Good value: ≥2

      Oppo K12x China (12GB + 512GB) has more flash LEDs than the average smartphone (2 vs 1). The average smartphone has 1 flash LEDs.2 vs 1
    • Newer Bluetooth version
      Oppo K12x China (12GB + 512GB) supports a newer Bluetooth version than the average smartphone (5.3 vs 5.2). The average version is Bluetooth 5.2.
      What it is: The generation of Bluetooth technology supported for wireless communication with peripherals like headphones and smartwatches.
      When it matters: When you want a stable, low-latency connection to your headphones or smartwatch.

      Importance: LOW

      Good value: >5.2

      Oppo K12x China (12GB + 512GB) supports a newer Bluetooth version than the average smartphone (5.3 vs 5.2). The average version is Bluetooth 5.2.5.3 vs 5.2
    • 4 GB more RAM
      Oppo K12x China (12GB + 512GB) has more RAM capacity than the average smartphone (12 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    • 2x more storage
      Oppo K12x China (12GB + 512GB) offers more internal storage than the average smartphone (512 GB vs 256 GB). The average smartphone provides 256 GB of internal storage.
    • 1 more flash LEDs
      Oppo K12x China (12GB + 512GB) has more flash LEDs than the average smartphone (2 vs 1). The average smartphone has 1 flash LEDs.
    • Newer Bluetooth version
      Oppo K12x China (12GB + 512GB) supports a newer Bluetooth version than the average smartphone (5.3 vs 5.2). The average version is Bluetooth 5.2.
    • Has an always-on display
      Oppo K12x China (12GB + 512GB) features an always-on display, the average smartphone does not. 49.1% of smartphones offer always-on functionality.
    • 2.42x faster charging speed
      Oppo K12x China (12GB + 512GB) supports a faster charging speed than the average smartphone (80 W vs 33 W). The average charging speed is 33 W.
    • 10% larger battery capacity
      Oppo K12x China (12GB + 512GB) has a larger battery capacity than the average smartphone (5,500 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
    • Has a 3.5 mm headphone jack
      Oppo K12x China (12GB + 512GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.3% of smartphones include a standard headphone jack.
    • 2.7% lighter
      Oppo K12x China (12GB + 512GB) is lighter than the average smartphone (191 g vs 196.2 g). The average smartphone weighs 196.2 g.
    • 0.2 mm thinner
      Oppo K12x China (12GB + 512GB) is thinner than the average smartphone (8.1 mm vs 8.3 mm). The average smartphone thickness is 8.3 mm.
    • 0.4 mm narrower
      Oppo K12x China (12GB + 512GB) is narrower than the average smartphone (75.6 mm vs 76 mm). The average smartphone width is 76 mm.
    • 0.7 mm shorter
      Oppo K12x China (12GB + 512GB) is shorter than the average smartphone (162.9 mm vs 163.6 mm). The average smartphone height is 163.6 mm.

    Total
    Performance & Hardware
    Camera
    Connectivity
    Display
    Battery
    Audio
    Design
    • Worse processor
      Oppo K12x China (12GB + 512GB) uses a worse processor than the average smartphone (Qualcomm Snapdragon 695 5G vs Qualcomm Snapdragon 7 Gen 3).
    • 42.9% lower maximum RAM capacity
      Oppo K12x China (12GB + 512GB) supports less maximum RAM than the average smartphone (8 GB vs 14 GB). The average smartphone supports 14 GB of RAM.
    • Lacks multithreading support
      Oppo K12x China (12GB + 512GB) does not support multithreading, the average smartphone does. 80.5% of smartphones support multithreading.
    • 33.3% higher TDP (less efficient)
      Oppo K12x China (12GB + 512GB) has a higher TDP than the average smartphone (4 W vs 6 W). The average smartphone has a TDP of 6 W.
    • 22.4% slower memory speed
      Oppo K12x China (12GB + 512GB) has a lower memory speed than the average smartphone (2,133 MHz vs 2,750 MHz). The average smartphone has a memory speed of 2,750 MHz.
    • 23.1% lower Geekbench 6 multi-core benchmark score
      Oppo K12x China (12GB + 512GB) performs worse in Geekbench 6 multi-core than the average smartphone (1,948 vs 2,533). The average smartphone scores 2,533 in the Geekbench 6 multi-core test.
    • 33.6% lower memory bandwidth
      Oppo K12x China (12GB + 512GB) has lower memory bandwidth than the average smartphone (17 GB/s vs 25.6 GB/s). The average smartphone has a bandwidth of 25.6 GB/s.
    • 8.3% lower CPU boost clock speed
      Oppo K12x China (12GB + 512GB) has a lower CPU boost clock speed than the average smartphone (2.2 GHz vs 2.4 GHz). The average smartphone has a boost clock speed of 2.4 GHz.
    • 17% lower Geekbench 6 single-core benchmark score
      Oppo K12x China (12GB + 512GB) performs worse in Geekbench 6 single-core than the average smartphone (782 vs 942). The average smartphone scores 942 in the Geekbench 6 single-core test.
    • Lower CPU base clock speed
      Oppo K12x China (12GB + 512GB) has a lower CPU base clock speed than the average smartphone (2x2.2 GHz & 6x1.7 GHz vs 2x2.2 GHz & 6x2 GHz). The average smartphone has a base clock speed of 2x2.2 GHz & 6x2 GHz.
    • Lacks focus mode
      Oppo K12x China (12GB + 512GB) does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
    • Lacks instant markup
      Oppo K12x China (12GB + 512GB) does not support instant markup, the average smartphone does. 52.7% of smartphones include instant markup tools.
    • No Wi-Fi password sharing
      Oppo K12x China (12GB + 512GB) does not support Wi-Fi password sharing, the average smartphone does. 57.9% of smartphones allow easy Wi-Fi sharing.
    • Worse main camera video quality
      Oppo K12x China (12GB + 512GB) records worse main camera video than the average smartphone. 11.80x of smartphones support 4K video recording.
    • Narrower main camera aperture
      Oppo K12x China (12GB + 512GB) has a narrower main camera aperture than the average smartphone (f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
    • 35.9% smaller main camera sensor area
      Oppo K12x China (12GB + 512GB) has a smaller main camera sensor area than the average smartphone (20.5 mm² vs 32 mm²). The average smartphone sensor area is 32 mm².
    • No slow-motion recording
      Oppo K12x China (12GB + 512GB) does not support slow-motion recording, the average smartphone does. 90.3% of smartphones offer slow-mo features.
    • No timelapse video
      Oppo K12x China (12GB + 512GB) does not support timelapse video, the average smartphone does. 92.2% of smartphones include timelapse modes.
    • 0.16 µm smaller main camera pixel size
      Oppo K12x China (12GB + 512GB) has a smaller main camera pixel size than the average smartphone (0.6 µm vs 0.8 µm). The average smartphone has a pixel size of 0.8 µm.
      1.28 binned
    • Lower-resolution main camera
      Oppo K12x China (12GB + 512GB) has a lower-resolution main camera than the average smartphone (50 MP & 2 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
    • Narrower front camera aperture
      Oppo K12x China (12GB + 512GB) has a narrower front camera aperture than the average smartphone (f/2.4 vs f/2.2). The average smartphone front aperture is f/2.2.
    • No NFC
      Oppo K12x China (12GB + 512GB) does not support NFC, the average smartphone does. 83.1% of smartphones feature NFC.
    • 27.3% lower screen brightness
      Oppo K12x China (12GB + 512GB) has a lower screen brightness than the average smartphone (480 nits vs 660 nits). The average smartphone has a brightness of 660 nits.
    • 50% lower touch sampling rate
      Oppo K12x China (12GB + 512GB) 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.
    • Worse display glass type
      Oppo K12x China (12GB + 512GB) uses a worse display glass type than the average smartphone (Panda Glass vs Corning Gorilla Glass 5). 0.00% of smartphones use the better glass type.
    • No reverse wired charging
      Oppo K12x China (12GB + 512GB) does not support reverse wired charging, the average smartphone does. 60.9% of smartphones support reverse wired charging.
    • No LDAC support
      Oppo K12x China (12GB + 512GB) does not support LDAC, the average smartphone does. 60.3% of smartphones support LDAC.
    • No aptX support
      Oppo K12x China (12GB + 512GB) does not support aptX, the average smartphone does. 50.2% of smartphones support aptX.
    • 1 fewer microphone/s
      Oppo K12x China (12GB + 512GB) has fewer microphones than the average smartphone (1 vs 2). The average smartphone has 2 microphones.
    • Lower IP rating
      Oppo K12x China (12GB + 512GB) has a lower IP rating than the average smartphone (IP54 vs IP67). 0.00% of smartphones have a higher IP rating.
    • Worse processor
      Oppo K12x China (12GB + 512GB) uses a worse processor than the average smartphone (Qualcomm Snapdragon 695 5G vs Qualcomm Snapdragon 7 Gen 3).
      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

      Oppo K12x China (12GB + 512GB) uses a worse processor than the average smartphone (Qualcomm Snapdragon 695 5G vs Qualcomm Snapdragon 7 Gen 3).Qualcomm Snapdragon 695 5G vs Qualcomm Snapdragon 7 Gen 3
    • 42.9% lower maximum RAM capacity
      Oppo K12x China (12GB + 512GB) supports less maximum RAM than the average smartphone (8 GB vs 14 GB). The average smartphone supports 14 GB of RAM.
      What it is: The highest amount of RAM that the device’s chipset or architecture can support, regardless of how much is actually installed.
      When it matters: When you are considering the long-term potential of the hardware platform.

      Importance: MEDIUM

      Good value: >16 GB

      Oppo K12x China (12GB + 512GB) supports less maximum RAM than the average smartphone (8 GB vs 14 GB). The average smartphone supports 14 GB of RAM.8 GB vs 14 GB
    • Lacks multithreading support
      Oppo K12x China (12GB + 512GB) does not support multithreading, the average smartphone does. 80.5% of smartphones support multithreading.
      What it is: Indicates whether the CPU can handle multiple threads per core to improve multitasking.
      When it matters: When you want better efficiency and speed while running background tasks alongside active apps.

      Importance: MEDIUM

      Oppo K12x China (12GB + 512GB) does not support multithreading, the average smartphone does. 80.5% of smartphones support multithreading.
    • Lower IP rating
      Oppo K12x China (12GB + 512GB) has a lower IP rating than the average smartphone (IP54 vs IP67). 0.00% of smartphones have a higher IP rating.
      What it is: A standardized code (Ingress Protection) indicating the device's resistance to dust and water intrusion.
      When it matters: When you want to know if your phone can survive a splash, a dunk, or a dusty environment.

      Importance: MEDIUM

      Oppo K12x China (12GB + 512GB) has a lower IP rating than the average smartphone (IP54 vs IP67). 0.00% of smartphones have a higher IP rating.IP54 vs IP67
    • No NFC
      Oppo K12x China (12GB + 512GB) does not support NFC, the average smartphone does. 83.1% of smartphones feature NFC.
      What it is: Near Field Communication technology that enables contactless payments, quick pairing, and data exchange over short distances.
      When it matters: When you want to make contactless payments or quickly pair with compatible accessories.

      Importance: MEDIUM

      Oppo K12x China (12GB + 512GB) does not support NFC, the average smartphone does. 83.1% of smartphones feature NFC.
    • Worse main camera video quality
      Oppo K12x China (12GB + 512GB) records worse main camera video than the average smartphone. 11.80x of smartphones support 4K video recording.
      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

      Oppo K12x China (12GB + 512GB) records worse main camera video than the average smartphone. 11.80x of smartphones support 4K video recording.1080x30 fps vs 2160x30 fps
    • Narrower main camera aperture
      Oppo K12x China (12GB + 512GB) has a narrower main camera aperture than the average smartphone (f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.
      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

      Oppo K12x China (12GB + 512GB) has a narrower main camera aperture than the average smartphone (f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4). The average smartphone aperture is f/1.8 & f/2.2 & f/2.4 & f/2.4.f/1.8 & f/2.4 vs f/1.8 & f/2.2 & f/2.4 & f/2.4
    • No LDAC support
      Oppo K12x China (12GB + 512GB) does not support LDAC, the average smartphone does. 60.3% of smartphones support LDAC.
      What it is: A high-quality Bluetooth audio codec developed by Sony that supports high-resolution audio streaming.
      When it matters: When you have high-end Sony headphones and want the best possible wireless audio quality.

      Importance: MEDIUM

      Oppo K12x China (12GB + 512GB) does not support LDAC, the average smartphone does. 60.3% of smartphones support LDAC.
    Total
    Overall
    Performance & Hardware
    Software
    Camera
    Connectivity
    Display
    Battery
    Audio
    Design

    Graphic comparison of Oppo K12x China (12GB + 512GB) and other smartphones

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    Third-party reviews

    What customers like about Oppo K12x China (12GB + 512GB)?

    • High-speed 80W wired charging that can reach 100% in approximately 50 minutes
    • Smooth 120Hz refresh rate on a bright 6.67-inch OLED display
    • Large 5,500mAh battery providing long-lasting daily usage
    • Support for 5G connectivity at a competitive price point
    • Durable build featuring twice-reinforced glass (Panda Glass and China Southern Glass)
    • Thin and lightweight design with a 7.68mm profile

    What customers dislike about Oppo K12x China (12GB + 512GB)?

    • The Snapdragon 695 5G processor is considered outdated by some users for 2024/2025 standards
    • Lack of 4K video recording and 1080p 60FPS support
    • Plastic back and frame may feel less premium compared to glass-backed rivals
    • Does not feature NFC support in this specific model
    • Single speaker setup instead of dual stereo speakers
    • Camera performance in low-light conditions is only average

    Expert reviews

    G
    gizbot.com
    03/08/2024
    OPPO K12x 5G Hands-On Review: Pushing the Envelope of Durability

    The Gizbot review highlights the OPPO K12x 5G as a durable budget smartphone featuring a 360° Damage-Proof Armour Body and MIL-STD-810H certification, capable of surviving drops. The device boasts a 120Hz display with Splash Touch technology, IP54 rating, and Panda Glass protection. Key performance aspects include the MediaTek Dimensity 6300 chipset, a long-lasting 5,100mAh battery,...Read more

    Video reviews

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