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Oppo A40 (8GB + 256GB) Review | 197 Data compared

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  • Avg. price: ~£130
  • RAM capacity: 8 GB
  • Internal storage: 256 GB
  • Screen size: 6.67 inches
  • Main camera megapixels: 50 MP

Oppo A40 (8GB + 256GB) review. Compare 197 technical specifications and user reviews to see how it ranks among smartphones and if it's worth buying.

7.0

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%

6.7

Technical Score

10.0%

9.1

User score

Very good
6.7

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%

7.6

Performance & Hardware

18.0%

6.2

Camera

15.0%

5.2

Display

15.0%

7.6

Battery

10.0%

7.5

Software

10.0%

7.0

Connectivity

4.0%

3.6

Audio

3.0%

7.3

Design

Good
9.1

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%

8.7

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.4
(420)
amazon
4.4
(100)
amazon
4.5
(47)

(Reviews last updated: Mar 2026)

Exceptional
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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.

    Available versions:
    8GB + 256GB4GB + 128GB£?

    Verdict

    The Oppo A40 (8GB + 256GB variant) is a budget-friendly 4G smartphone featuring a large 6.67-inch, 90Hz LCD display with a bright 1000nit peak brightness, powered by a Qualcomm Snapdragon 6s 4G Gen1 processor and running Android 14. Its main characteristics include a capable 50MP main camera, a large 5100mAh battery with 45W SuperVOOC fast charging, and IP54 splash resistance and MIL-STD-810H military-grade shock resistance certifications for durability. Pros are its very competitive price point, solid battery life, and user-friendly ColorOS software, while cons include a low-resolution 5MP front camera, average photo quality in low light conditions, a single (mono) speaker, and performance that can be slow or laggy under intensive use.

    Technical Specifications of smartphone Oppo A40 (8GB + 256GB)

    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%

    7.6

    Performance & Hardware

    18.0%

    6.2

    Camera

    15.0%

    5.2

    Display

    15.0%

    7.6

    Battery

    10.0%

    7.5

    Software

    10.0%

    7.0

    Connectivity

    4.0%

    3.6

    Audio

    3.0%

    7.3

    Design

    6.7
    Oppo A40 (8GB + 256GB) has a technical score of 6.74 points, which is lower than 68.9% 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%

    8.7

    User reviews

    30.0%

    10

    Popularity

    User score:
    United Kingdom
    amazon
    4.4
    (420)
    amazon
    4.4
    (100)
    amazon
    4.5
    (47)

    (Reviews last updated: Mar 2026)

    9.1
    Oppo A40 (8GB + 256GB) has a user score of 9.11 points, which is higher than 86.3% 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
    Oppo A40 (8GB + 256GB) has a popularity of 10 points, which is higher than 70.5% 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%

    7.0

    Overall score

    40.0%

    9.8

    Price

    7.8
    Oppo A40 (8GB + 256GB) has a quality-to-price ratio of 7.8 points, which is higher than 53.8% 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

    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 6 Gen 1
    Oppo A40 (8GB + 256GB) uses the Qualcomm Snapdragon 6 Gen 1 processor model which is slower than processors in 50.5% of smartphones and equal to processors in 1.2% of smartphones.
    RAM capacity
    What it is: The amount of volatile memory available for running apps and multitasking.
    When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

    Importance: HIGH

    Good value: >12 GB

    8 GB
    Oppo A40 (8GB + 256GB) has a RAM capacity of 8 GB which is larger than the RAM capacity of 28.5% of smartphones and equal to that of 30.4% 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

    256 GB
    Oppo A40 (8GB + 256GB) has an internal storage capacity of 256 GB which is larger than the storage of 38.8% of smartphones and equal to that of 38.3% 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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
    Oppo A40 (8GB + 256GB) has a main camera resolution of 50 MP MP which is lower than that of 71.7% of smartphones and equal to that of 2.8% 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
    Oppo A40 (8GB + 256GB) has a main camera aperture of f/1.8 which is narrower than that of 71.8% of smartphones and equal to that of 5% 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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
    Show more
    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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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

    no
    Oppo A40 (8GB + 256GB) does not support 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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

    720 x 1604 px
    Oppo A40 (8GB + 256GB) has a screen resolution of 720x1604 px which is lower than that of 85.3% of smartphones and equal to that of 2.5% 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

    264 ppi
    Oppo A40 (8GB + 256GB) has a pixel density of 264 ppi which is lower than that of 88.1% of smartphones and equal to that of 2.6% 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

    IPS LCD
    Oppo A40 (8GB + 256GB) uses a IPS LCD display type. 0% 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

    90 Hz
    Oppo A40 (8GB + 256GB) supports a refresh rate of 90 Hz which is lower than in 65.4% of smartphones and equal to that in 18.9% 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

    5,100 mAh
    Oppo A40 (8GB + 256GB) has a battery capacity of 5,100 mAh which is larger than the batteries in 59.5% of smartphones and equal to those in 2% 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

    45 W
    Oppo A40 (8GB + 256GB) supports charging speeds of 45 W which is faster than in 57.1% of smartphones and equal to speeds in 6.6% 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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

    no
    Oppo A40 (8GB + 256GB) does not include 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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 A40 (8GB + 256GB) 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

    165.77 mm
    Oppo A40 (8GB + 256GB) has a height of 165.77 mm which is taller than 73.7% of smartphones and equal to that of 0.2% 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

    76 mm
    Oppo A40 (8GB + 256GB) has a width of 76 mm which is narrower than 47.2% of smartphones and equal to that of 3.2% 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

    7.68 mm
    Oppo A40 (8GB + 256GB) has a thickness of 7.68 mm which is thinner than 85.2% of smartphones and equal to that of 0.4% 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

    186 g
    Oppo A40 (8GB + 256GB) weighs 186 g which is lighter than 75.6% of smartphones and equal to the weight of 2.5% 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

    87,780 cm³
    Oppo A40 (8GB + 256GB) has a device volume of 87,780 cm³ which is smaller than 72.7% of smartphones and equal to that of 1.5% of smartphones.
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    Oppo A40 (8GB + 256GB) vs the average smartphone

    • Newer DDR memory version
      Oppo A40 (8GB + 256GB) supports a newer DDR version than the average smartphone (5 vs 4). 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

      Oppo A40 (8GB + 256GB) supports a newer DDR version than the average smartphone (5 vs 4). The average DDR version is 4.5 vs 4
    • 51.5% higher screen brightness
      Oppo A40 (8GB + 256GB) has a higher screen brightness than the average smartphone (1,000 nits vs 660 nits). The average smartphone brightness is 660 nits.
      What it is: The highest sustained brightness level the screen can achieve to remain visible under direct sunlight.
      When it matters: When you need to read your screen clearly under direct sunlight.

      Importance: MEDIUM

      Good value: >800 nits

      Oppo A40 (8GB + 256GB) has a higher screen brightness than the average smartphone (1,000 nits vs 660 nits). The average smartphone brightness is 660 nits.1,000 nits vs 660 nits
    • Uses a BSI sensor
      Oppo A40 (8GB + 256GB) uses a BSI sensor, the average smartphone does not. 40.1% of smartphones include BSI sensors.
      What it is: Indicates the use of a Back-Side Illuminated sensor, which arranges the wiring behind the light-receiving surface to improve low-light sensitivity.
      When it matters: When you take photos in dim environments and need better light sensitivity.

      Importance: LOW

      Oppo A40 (8GB + 256GB) uses a BSI sensor, the average smartphone does not. 40.1% of smartphones include BSI sensors.
    • 2% larger battery capacity
      Oppo A40 (8GB + 256GB) has a larger battery capacity than the average smartphone (5,100 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 A40 (8GB + 256GB) has a larger battery capacity than the average smartphone (5,100 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.5,100 mAh vs 5,000 mAh
    • 0.62 mm thinner
      Oppo A40 (8GB + 256GB) is thinner than the average smartphone (7.7 mm vs 8.3 mm). The average smartphone thickness is 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

      Oppo A40 (8GB + 256GB) is thinner than the average smartphone (7.7 mm vs 8.3 mm). The average smartphone thickness is 8.3 mm.7.68 mm vs 8.3 mm
    • Has a 3.5 mm headphone jack
      Oppo A40 (8GB + 256GB) 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 A40 (8GB + 256GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.3% of smartphones include a standard headphone jack.
    • 5.2% lighter
      Oppo A40 (8GB + 256GB) is lighter than the average smartphone (186 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

      Oppo A40 (8GB + 256GB) is lighter than the average smartphone (186 g vs 196.2 g). The average smartphone weighs 196.2 g.186 g vs 196.2 g
    • 36.4% faster charging speed
      Oppo A40 (8GB + 256GB) supports a faster charging speed than the average smartphone (45 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 A40 (8GB + 256GB) supports a faster charging speed than the average smartphone (45 W vs 33 W). The average charging speed is 33 W.45 W vs 33 W
    • Newer DDR memory version
      Oppo A40 (8GB + 256GB) supports a newer DDR version than the average smartphone (5 vs 4). The average DDR version is 4.
    • 16.7% lower TDP
      Oppo A40 (8GB + 256GB) has a lower TDP than the average smartphone (7 W vs 6 W). The average TDP for smartphones is 6 W.
    • Uses a BSI sensor
      Oppo A40 (8GB + 256GB) uses a BSI sensor, the average smartphone does not. 40.1% of smartphones include BSI sensors.
    • 51.5% higher screen brightness
      Oppo A40 (8GB + 256GB) has a higher screen brightness than the average smartphone (1,000 nits vs 660 nits). The average smartphone brightness is 660 nits.
    • 2% larger battery capacity
      Oppo A40 (8GB + 256GB) has a larger battery capacity than the average smartphone (5,100 mAh vs 5,000 mAh). The average smartphone battery is 5,000 mAh.
    • 36.4% faster charging speed
      Oppo A40 (8GB + 256GB) supports a faster charging speed than the average smartphone (45 W vs 33 W). The average charging speed is 33 W.
    • Has a 3.5 mm headphone jack
      Oppo A40 (8GB + 256GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.3% of smartphones include a standard headphone jack.
    • 0.62 mm thinner
      Oppo A40 (8GB + 256GB) is thinner than the average smartphone (7.7 mm vs 8.3 mm). The average smartphone thickness is 8.3 mm.
    • 5.2% lighter
      Oppo A40 (8GB + 256GB) is lighter than the average smartphone (186 g vs 196.2 g). The average smartphone weighs 196.2 g.
    • 10.2% smaller volume
      Oppo A40 (8GB + 256GB) has a smaller device volume than the average smartphone (87,780 cm³ vs 97,800 cm³). The average smartphone volume is 97,800 cm³.

    Total
    Overall
    Performance & Hardware
    Camera
    Display
    Battery
    Audio
    Design
    • Worse processor
      Oppo A40 (8GB + 256GB) uses a worse processor than the average smartphone (Qualcomm Snapdragon 6 Gen 1 vs Qualcomm Snapdragon 7 Gen 3).
    • 15.8% slower GPU clock
      Oppo A40 (8GB + 256GB) has a lower GPU frequency than the average smartphone (800 MHz vs 950 MHz). The average smartphone has a GPU frequency of 950 MHz.
    • 50% less L3 cache
      Oppo A40 (8GB + 256GB) has a smaller L3 cache than the average smartphone (2,048 KB vs 4,096 KB). The average smartphone has an L3 cache of 4,096 KB.
    • 14.3% lower maximum RAM capacity
      Oppo A40 (8GB + 256GB) supports less maximum RAM than the average smartphone (12 GB vs 14 GB). The average smartphone supports 14 GB of RAM.
    • 8.3% lower CPU boost clock speed
      Oppo A40 (8GB + 256GB) 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.
    • 14.1% lower memory bandwidth
      Oppo A40 (8GB + 256GB) has lower memory bandwidth than the average smartphone (22 GB/s vs 25.6 GB/s). The average smartphone has a bandwidth of 25.6 GB/s.
    • Lacks focus mode
      Oppo A40 (8GB + 256GB) does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
    • No Wi-Fi password sharing
      Oppo A40 (8GB + 256GB) does not support Wi-Fi password sharing, the average smartphone does. 57.9% of smartphones allow easy Wi-Fi sharing.
    • Narrower main camera aperture
      Oppo A40 (8GB + 256GB) has a narrower main camera aperture than the average smartphone (f/1.8 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.
    • Lower front camera megapixels
      Oppo A40 (8GB + 256GB) has lower front camera megapixels than the average smartphone (5 MP vs 16 MP). The average smartphone has a 16 MP front camera.
    • Worse main camera video quality
      Oppo A40 (8GB + 256GB) records worse main camera video than the average smartphone. 11.80x of smartphones support 4K video recording.
    • 35.9% smaller main camera sensor area
      Oppo A40 (8GB + 256GB) 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.
    • Lower-resolution main camera
      Oppo A40 (8GB + 256GB) has a lower-resolution main camera than the average smartphone (50 MP vs 50 MP & 8 MP). The average smartphone has a 50 MP & 8 MP main camera.
    • 0.16 µm smaller main camera pixel size
      Oppo A40 (8GB + 256GB) 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
    • No 5G connectivity
      Oppo A40 (8GB + 256GB) does not support 5G connectivity, the average smartphone does. 66.9% of smartphones are 5G compatible.
    • Older Bluetooth version
      Oppo A40 (8GB + 256GB) uses an older Bluetooth version than the average smartphone (5 vs 5.2). The average smartphone uses Bluetooth 5.2.
    • Inferior display type
      Oppo A40 (8GB + 256GB) has an inferior display type compared to the average smartphone (IPS LCD vs OLED/AMOLED). 0.00% of smartphones use the superior display type.
    • 25% lower refresh rate
      Oppo A40 (8GB + 256GB) has a lower refresh rate than the average smartphone (90 Hz vs 120 Hz). The average smartphone has a refresh rate of 120 Hz.
    • 33.2% lower pixel density
      Oppo A40 (8GB + 256GB) has a lower pixel density than the average smartphone (264 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
    • Lower screen resolution
      Oppo A40 (8GB + 256GB) has a lower screen resolution than the average smartphone (720x1604 px vs 1080x2400 px). The average smartphone has a resolution of 1080x2400 px.
    • Worse display glass type
      Oppo A40 (8GB + 256GB) 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.
    • 25% lower touch sampling rate
      Oppo A40 (8GB + 256GB) has a lower touch sampling rate than the average smartphone (180 Hz vs 240 Hz). The average smartphone has a sampling rate of 240 Hz.
    • No stereo speakers
      Oppo A40 (8GB + 256GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature stereo speakers.
    • No aptX HD
      Oppo A40 (8GB + 256GB) does not support aptX HD, the average smartphone does. 50.4% of smartphones support aptX HD.
    • 1 fewer microphone/s
      Oppo A40 (8GB + 256GB) has fewer microphones than the average smartphone (1 vs 2). The average smartphone has 2 microphones.
    • Lower IP rating
      Oppo A40 (8GB + 256GB) has a lower IP rating than the average smartphone (IP54 vs IP67). 0.00% of smartphones have a higher IP rating.
    • 2.17 mm taller
      Oppo A40 (8GB + 256GB) is taller than the average smartphone (165.8 mm vs 163.6 mm). The average smartphone has a height of 163.6 mm.
    • Inferior display type
      Oppo A40 (8GB + 256GB) has an inferior display type compared to the average smartphone (IPS LCD vs OLED/AMOLED). 0.00% of smartphones use the superior 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

      Oppo A40 (8GB + 256GB) has an inferior display type compared to the average smartphone (IPS LCD vs OLED/AMOLED). 0.00% of smartphones use the superior display type.IPS LCD vs OLED/AMOLED
    • No 5G connectivity
      Oppo A40 (8GB + 256GB) does not support 5G connectivity, the average smartphone does. 66.9% of smartphones are 5G compatible.
      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

      Oppo A40 (8GB + 256GB) does not support 5G connectivity, the average smartphone does. 66.9% of smartphones are 5G compatible.
    • No stereo speakers
      Oppo A40 (8GB + 256GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature 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

      Oppo A40 (8GB + 256GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature stereo speakers.
    • Narrower main camera aperture
      Oppo A40 (8GB + 256GB) has a narrower main camera aperture than the average smartphone (f/1.8 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 A40 (8GB + 256GB) has a narrower main camera aperture than the average smartphone (f/1.8 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 vs f/1.8 & f/2.2 & f/2.4 & f/2.4
    • Lower front camera megapixels
      Oppo A40 (8GB + 256GB) has lower front camera megapixels than the average smartphone (5 MP vs 16 MP). The average smartphone has a 16 MP front camera.
      What it is: The resolution of the front-facing camera, measured in megapixels, determining the detail level of selfies.
      When it matters: When you want detailed selfies or high-quality video for calls and streaming.

      Importance: HIGH

      Good value: >16 MP

      Oppo A40 (8GB + 256GB) has lower front camera megapixels than the average smartphone (5 MP vs 16 MP). The average smartphone has a 16 MP front camera.5 MP vs 16 MP
    • 33.2% lower pixel density
      Oppo A40 (8GB + 256GB) has a lower pixel density than the average smartphone (264 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

      Oppo A40 (8GB + 256GB) has a lower pixel density than the average smartphone (264 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.264 ppi vs 395 ppi
    • 25% lower refresh rate
      Oppo A40 (8GB + 256GB) has a lower refresh rate than the average smartphone (90 Hz vs 120 Hz). The average smartphone has a refresh rate of 120 Hz.
      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

      Oppo A40 (8GB + 256GB) has a lower refresh rate than the average smartphone (90 Hz vs 120 Hz). The average smartphone has a refresh rate of 120 Hz.90 Hz vs 120 Hz
    • Lower IP rating
      Oppo A40 (8GB + 256GB) 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 A40 (8GB + 256GB) has a lower IP rating than the average smartphone (IP54 vs IP67). 0.00% of smartphones have a higher IP rating.IP54 vs IP67
    Total
    Performance & Hardware
    Software
    Camera
    Connectivity
    Display
    Audio
    Design

    Graphic comparison of Oppo A40 (8GB + 256GB) and other smartphones

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    Third-party reviews

    United Kingdom
    amazon
    4.4
    420 Reviews
    amazon
    4.4
    100 Reviews
    amazon
    4.5
    47 Reviews

    (Reviews last updated: Mar 2026)

    United Kingdom
    amazon
    4.4
    150 Reviews
    amazon
    4.0
    109 Reviews
    Amazon
    4.6
    30 Reviews

    (Reviews last updated: Mar 2026)

    What customers like about Oppo A40 (8GB + 256GB)?

    • Affordability: Highly praised as a value-for-money budget option, especially for casual users.
    • Battery Performance: Features a long-lasting 5,100mAh battery that can often extend into a second day of light use.
    • Durability: Boasts military-grade (MIL-STD-810H) shock resistance and an IP54 splash-proof rating.
    • Display Features: The 6.67-inch screen supports a 90Hz refresh rate for smoother scrolling and reaches up to 1,000 nits of brightness.
    • Design and Ergonomics: Lightweight (186g) and slim build, making it comfortable for extended periods of use.
    • Software: Comes with user-friendly ColorOS 14 (based on Android 14) with a promise of two major OS updates.

    What customers dislike about Oppo A40 (8GB + 256GB)?

    • Processing Speed: The Snapdragon 6s 4G Gen1 chipset and 4GB RAM lead to slow performance and occasional stuttering.
    • Camera Limitations: Photos lack detail in low light, and the 5MP front-facing camera is considered very basic.
    • Gaming Performance: Not suitable for intensive gaming; users report significant lag in titles like PUBG Mobile.
    • Audio Quality: Equipped with only a single bottom-firing speaker that lacks depth and clarity at high volumes.
    • Screen Resolution: The display is limited to HD+ (720p) quality, which may lack the sharpness found in rival models.
    • Charging Equipment: While it supports 45W fast charging, a compatible charger is often not included in the box.

    Expert reviews

    C
    cybershack.com.au
    21/10/2024
    OPPO A40 4G – a great 3G smartphone replacement (mini-review)

    The Oppo A40 4G is positioned as a durable, budget-friendly replacement for 3G phones, prioritizing longevity with MIL-STD 810H military-grade shock resistance and IP54 splash resistance. Key features include a 6.67-inch 90Hz display, 5100mAh battery with 45W charging, and "Splash Touch" technology for wet usability. While offering a 50MP main camera and expandable storage, the...Read more

    T
    techadvisor.com
    14/08/2025
    Oppo A40 review: Absurdly cheap, but for casual users only

    is identified by Tech Advisor as a highly affordable budget smartphone priced around £, aimed at casual users who prioritize value over performance. Key pros include a premium design with an aluminum frame, military-grade ( H) durability,, mAh battery, Hz display. However, the device is held back by chip, GB RAM, p screen that struggles with brightness. While suitable for basic...Read more

    P
    pcwelt.de
    29/08/2025
    Oppo A40 Review: Absurdly Cheap, but Only Suitable for Casual Users

    PC-Welt’s review of the Oppo A40 describes it as an "absurdly cheap" entry-level phone, focusing on affordability and durability with its MIL-STD 810H shock resistance and appealing 6.67-inch, 90Hz LCD screen. While the display brightness is a highlight, the 720p resolution is considered low, notes the review. The device, which serves as a reliable option for light users, offers...Read more

    (Translated)Show original
    C
    consumentenbond.nl
    01/09/2024
    OPPO A40 - Sparkle Black - Test, Reviews & Prices

    The OPPO A40 Sparkle Black is a budget-friendly, entry-level smartphone featuring exceptional durability with MIL-STD-810H shock resistance and IP54 splash protection. Its 6.67-inch LCD display offers a 1,000-nit peak brightness but is limited to a lower 720p HD+ resolution, with performance powered by a Snapdragon 6s 4G Gen1 chipset. While suitable for daily tasks, the device can...Read more

    (Translated)Show original
    T
    technologyinsider.nl
    18/11/2024
    Oppo A40 review: A smartphone with a 50-megapixel camera for 140 euros

    The Oppo A40, priced around €140, is highlighted for its robust build, featuring MIL-STD-810H shock resistance, IP54 splash protection, and a 6.67-inch 90Hz display with 1,000 nits peak brightness. However, the device suffers from significant performance issues due to its entry-level Snapdragon 6s 4G Gen1 chip and 4GB of RAM, resulting in a sluggish user experience and a lack of 5G...Read more

    (Translated)Show original

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