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Blackview Tab 20 (4GB + 128GB) Review | 168 Data compared

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  • Avg. price in UK: ~£110
  • Avg. price in US: ~$90
  • RAM capacity: 4 GB
  • Internal storage: 128 GB
  • Screen size: 10.1 inches
  • Chipset: UNISOC T310

Blackview Tab 20 (4GB + 128GB) review. Compare 168 technical specifications and user reviews to see how it ranks among tablets and if it is worth buying.

5.4

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 Tablets on the market.

Score components:

90.0%

5.4

Technical Score

10.0%

?

User score

Good
5.4

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 Tablets based on technical performance and available features.

Score components:

22.0%

6.0

Performance

20.0%

4.5

Display

16.0%

6.8

Camera

14.0%

2.7

Battery

12.0%

5.4

Connectivity

8.0%

8.3

Software & Features

5.0%

5.1

Design

3.0%

5.2

Audio & Multimedia

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 reviews for this version.

Check reviews from other versions.

  • 4.9
    Gaming

    Score components:

    25.0%

    4.9

    RAM capacity

    20.0%

    1.0

    Refresh rate

    20.0%

    7.4

    GPU frequency

    20.0%

    6.2

    Chipset

    15.0%

    4.9

    Battery capacity

  • 5.4
    School

    Score components:

    20.0%

    6.2

    Chipset

    20.0%

    1.8

    Battery life

    20.0%

    4.9

    RAM capacity

    10.0%

    6.6

    Weight

    10.0%

    5.4

    Internal storage

    10.0%

    10

    Keyboard accessory

    10.0%

    6.6

    Screen size

  • 5.6
    Work

    Score components:

    30.0%

    4.9

    RAM capacity

    25.0%

    6.2

    Chipset

    20.0%

    5.4

    Internal storage

    15.0%

    6.6

    Screen size

    5.0%

    10

    Keyboard accessory

    5.0%

    1.0

    Stylus included

  • 5.2
    Seniors

    Score components:

    20.0%

    6.6

    Screen size

    20.0%

    1.8

    Battery life

    20.0%

    6.6

    Weight

    20.0%

    4.9

    RAM capacity

    20.0%

    6.2

    Chipset

  • 5.9
    Kids

    Score components:

    25.0%

    4.9

    Battery capacity

    25.0%

    4.9

    RAM capacity

    15.0%

    6.6

    Weight

    15.0%

    5.4

    Internal storage

    10.0%

    6.6

    Screen size

    10.0%

    9.9

    Price

  • 4.2
    Travel

    Score components:

    20.0%

    4.9

    RAM capacity

    20.0%

    1.8

    Battery life

    15.0%

    6.2

    Chipset

    15.0%

    6.6

    Weight

    10.0%

    1.0

    Cellular module

    10.0%

    1.0

    5G connectivity

    5.0%

    10

    GPS

    5.0%

    5.4

    Internal storage

  • No image
No image

Best prices in UK

    N/A~ £110

Best rankings

?

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

Available versions:
4GB + 64GB£?
Other versions:
4GB + 128GB

Verdict

The Blackview Tab 20 is a budget-friendly 10.1-inch tablet featuring an HD+ IPS display with 1280x800 resolution and a 79% screen-to-body ratio. It is powered by a quad-core Unisoc T310 processor and runs on Android 15 (DokeOS_P 4.1), equipped with 4GB of physical RAM (expandable by up to 8GB via virtual expansion) and 128GB of internal storage that can be further increased to 2TB using a microSD card. Key highlights include a 6000mAh battery supporting 10W charging, dual Smart-K speakers, Widevine L1 certification for HD streaming, and an 8MP rear/5MP front camera setup. Main pros are its large expandable storage capacity, modern operating system, and immersive audio-visual features for media consumption at a low price point; however, potential cons include relatively slow charging speeds, modest processing power for heavy gaming, and reports of occasional connectivity or build quality issues in some units.

Technical Specifications of tablet Blackview Tab 20 (4GB + 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 Tablets based on technical performance and available features.

Score components:

22.0%

?

Performance

20.0%

?

Display

16.0%

?

Camera

14.0%

?

Battery

12.0%

?

Connectivity

8.0%

?

Software & Features

5.0%

?

Design

3.0%

?

Audio & Multimedia

5.4
Blackview Tab 20 (4GB + 128GB) has a technical score of 5.39 points, which is lower than 58.4% of Tablets.
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

No reviews for this version.

Check reviews from other versions.

?
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
Blackview Tab 20 (4GB + 128GB) has a popularity of 1 points, which is higher than 0% 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%

5.4

Overall score

40.0%

9.9

Price

6.8
Blackview Tab 20 (4GB + 128GB) has a quality-to-price ratio of 6.8 points, which is higher than 48.8% of smartphones.
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Blackview
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: >=8 GB

4 GB
Blackview Tab 20 (4GB + 128GB) has a RAM capacity of 4 GB which is larger than the RAM capacity of 47.6% of tablets and equal to that of 17.6% of tablets.
Process node
What it is: The size of the manufacturing process used to create the chip's transistors, measured in nanometers (nm). Smaller nodes generally indicate more advanced, power-efficient chips.
When it matters: When you want a chipset that is more power-efficient and generates less heat.

Importance: HIGH

Good value: <7 nm

12 nm
Blackview Tab 20 (4GB + 128GB) is built on a 12 nm nm process node, which is smaller than the node size used in 53.7% of tablets and equal to the node used in 13.6% of tablets.
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: >=128 GB

128 GB
Blackview Tab 20 (4GB + 128GB) has an internal storage capacity of 128 GB which is larger than the storage of 56.7% of tablets and equal to that of 19.6% of tablets.
Geekbench 6 single-core benchmark score
What it is: A cross-platform benchmark by Primate Labs that measures single-core CPU performance. It reflects how quickly a device handles everyday tasks that rely on a single processing core.
When it matters: When you want snappy responsiveness in everyday interactions and simple apps.

Importance: HIGH

Good value: >1300

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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 text and media to look sharper on a larger display.

Importance: HIGH

1280×800
Blackview Tab 20 (4GB + 128GB) has a screen resolution of 1280×800 which is lower than that of 68.1% of tablets and equal to that of 21.6% of tablets.
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

60 Hz
Blackview Tab 20 (4GB + 128GB) supports a refresh rate of 60 Hz which is higher than in 0% of tablets and equal to that in 73.8% of tablets.
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
Blackview Tab 20 (4GB + 128GB) uses a IPS LCD display type. 75.4% of tablets use this display technology.
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 read a lot, look at fine details, or want text and graphics to look cleaner at close range.

Importance: HIGH

Good value: >250 ppi

149 ppi
Blackview Tab 20 (4GB + 128GB) has a pixel density of 149 ppi which is lower than that of 86.9% of tablets and equal to that of 9.3% of tablets.
Display glass type
What it is: The specific brand or model of strengthened glass used to protect the screen from scratches and drops.
When it matters: When drops, scratches, or long-term screen wear are a concern in daily use.

Importance: HIGH

Tempered Glass
Blackview Tab 20 (4GB + 128GB) uses Tempered Glass display glass which is weaker than that on 78.1% of tablets and equal to that on 19.5% of tablets.
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Optical image stabilization
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

no
Blackview Tab 20 (4GB + 128GB) does not support optical image stabilization. 0.4% of tablets include OIS.
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

8 MP
Blackview Tab 20 (4GB + 128GB) has a main camera resolution of 8 MP MP which is higher than that of 38.5% of tablets and equal to that of 31% of tablets.
Front camera megapixels
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: >=8 MP

5 MP
Blackview Tab 20 (4GB + 128GB) has a front camera resolution of 5 MP MP which is higher than in 49% of tablets and equal to that in 19.5% of tablets.
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

?
Optical zoom
What it is: A true zoom feature that adjusts the camera lens to get closer to the subject without losing image quality, unlike digital zoom.
When it matters: When you want to get closer to a distant subject without losing image clarity.

Importance: HIGH

1xx
Blackview Tab 20 (4GB + 128GB) supports 1x x optical zoom which is higher than in 18.4% of tablets and equal to that in 80.7% of tablets.
Show more
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 stronger chance of longer battery life, especially if you use the tablet heavily away from a charger.

Importance: HIGH

Good value: >8000 mAh

6,000 mAh
Blackview Tab 20 (4GB + 128GB) has a battery capacity of 6,000 mAh which is smaller than the batteries in 54.5% of tablets and equal to those in 4.2% of tablets.
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: >30 W

10 W
Blackview Tab 20 (4GB + 128GB) supports charging speeds of 10 W which is slower than in 61% of tablets and equal to speeds in 33.2% of tablets.
Battery life
What it is: An estimate of how long the tablet can run on one charge.
When it matters: When you do not want to recharge the tablet too often.

Importance: HIGH

Good value: >10 hours

6.3 hours
Blackview Tab 20 (4GB + 128GB) has a battery life of 6.3 hours, which is shorter than that of 91.5% of tablets and equal to that of 0.2% of tablets.
video playback
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 want to charge the tablet by placing it on a compatible pad.

Importance: MEDIUM

no
Blackview Tab 20 (4GB + 128GB) does not support wireless charging. 1.5% of tablets support wireless charging.
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 tablet spends tethered to a wall outlet.

Importance: MEDIUM

no
Blackview Tab 20 (4GB + 128GB) does not support fast charging. 49.3% of tablets support fast charging.
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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

no
Blackview Tab 20 (4GB + 128GB) does not support LTE. 63.3% of tablets 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
Blackview Tab 20 (4GB + 128GB) supports Wi-Fi connectivity. 99.9% of tablets offer Wi-Fi support.
GPS
What it is: Support for the Global Positioning System to determine the device's precise location.
When it matters: When you need accurate navigation for driving, walking, or exploring new places.

Importance: HIGH

yes
Blackview Tab 20 (4GB + 128GB) supports GPS. 83.2% of tablets include GPS functionality.
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
Blackview Tab 20 (4GB + 128GB) does not support 5G connectivity. 10.8% of tablets support 5G.
This version is Wi-Fi only and does not include a 5G cellular modem.
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

no
Blackview Tab 20 (4GB + 128GB) does not support NFC. 9.8% of tablets include NFC.
Show more
Operating system
What it is: The primary system software that manages the tablet's hardware and software resources.
When it matters: When you have a preference for the user interface and app ecosystem.

Importance: HIGH

Android
Blackview Tab 20 (4GB + 128GB) uses the Android operating system, which is more advanced than the one used by 23.7% of tablets.
Update support duration
What it is: The expected length of software update support for the tablet.
When it matters: When you care about how long the tablet should keep getting software updates.

Importance: HIGH

short
Blackview Tab 20 (4GB + 128GB) offers short update support, which is shorter than the support period of 56.9% of tablets and equal to that of 43.1% of tablets.
Direct OS updates
What it is: Receives major operating system updates directly from the device maker or platform provider instead of waiting on extra intermediaries.
When it matters: When fast access to new Android or system features and security patches matters to you.

Importance: HIGH

yes
Blackview Tab 20 (4GB + 128GB) receives direct OS updates. 79.4% of tablets receive direct updates.
On-device AI
What it is: A tablet feature related to on-device ai.
When it matters: When you use smart writing, photo, voice, or search features and want them to work faster or more privately on the tablet itself.

Importance: MEDIUM

yes
Blackview Tab 20 (4GB + 128GB) supports on-device AI. 32.1% of tablets support this capability.
Needs stronger row-level evidence for true on-device/local AI support
App tracking protection
What it is: A system-level feature that limits how apps track user behavior across other apps and services.
When it matters: When you want to stop apps from following your activity across other companies' apps and websites.

Importance: MEDIUM

yes
Blackview Tab 20 (4GB + 128GB) includes app tracking protection. 25.2% of tablets support this feature.
Show more
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 use the tablet around water, outdoors, or in dusty environments and want more durability.

Importance: MEDIUM

not rated
Blackview Tab 20 (4GB + 128GB) has an IP rating of not rated which is equal to that of 83% of tablets.
Weight
What it is: The total mass of the tablet, affecting how heavy it feels in the hand.
When it matters: When you want the tablet to be easier to carry and hold for longer sessions.

Importance: MEDIUM

Good value: <500 g

514.5 g
Blackview Tab 20 (4GB + 128GB) weighs 514.5 g which is heavier than 57.6% of tablets and equal to the weight of 0% of tablets.
Backlit keyboard
What it is: A keyboard with illuminated keys for easier typing in darker environments.
When it matters: When you type in dim rooms or low light.

Importance: MEDIUM

no
Blackview Tab 20 (4GB + 128GB) does not support a backlit keyboard. 8.9% of tablets support this accessory feature.
Keyboard accessory
What it is: Support for a keyboard accessory made for the tablet.
When it matters: When you want the tablet to work more like a small laptop.

Importance: MEDIUM

yes
Blackview Tab 20 (4GB + 128GB) supports a keyboard accessory. 83.4% of tablets support this option.
Pen latency
What it is: The delay between stylus input and the line or action appearing on screen, usually measured in milliseconds.
When it matters: When you want stylus input to feel quicker and more natural.

Importance: MEDIUM

Good value: <10 ms

N/A
Show more
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: >=2

1
Blackview Tab 20 (4GB + 128GB) includes 1 microphones, which is more than in 0.2% of tablets and equal to the number in 55.1% of tablets.
aptX Adaptive
What it is: A Bluetooth codec that dynamically adjusts bitrate to balance audio quality and connection stability.
When it matters: When you use wireless headphones in changing environments and want better audio quality without sacrificing connection stability.

Importance: MEDIUM

no
Blackview Tab 20 (4GB + 128GB) does not support aptX Adaptive. 4.9% of tablets offer this codec.
No confirmed built-in aptX Adaptive Bluetooth codec support.
Dolby Atmos support
What it is: Support for Dolby Atmos audio playback or processing.
When it matters: When you want more immersive sound from compatible movies, games, or music.

Importance: MEDIUM

no
Blackview Tab 20 (4GB + 128GB) does not support Dolby Atmos. 26.4% of tablets support this audio feature.
No confirmed Dolby Atmos audio support.
N. of speakers
What it is: The number of built-in speakers used for audio playback.
When it matters: When you want fuller sound without always using headphones.

Importance: MEDIUM

Good value: >=4

2
Blackview Tab 20 (4GB + 128GB) includes 2 speakers, which is more than in 12.2% of tablets and equal to the number in 59.2% of tablets.
Dual speakers.
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

?
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Blackview Tab 20 (4GB + 128GB) vs the average tablet

  • Includes battery health monitoring
    Blackview Tab 20 (4GB + 128GB) features battery health monitoring, the average tablet does not. 34.7% of tablets include battery health tools.
    What it is: A system that tracks and reports the battery's condition, capacity degradation, and overall health over time to help users understand performance changes.
    When it matters: When you keep the tablet for years and want early warning if the battery is wearing out.

    Importance: LOW

    Blackview Tab 20 (4GB + 128GB) features battery health monitoring, the average tablet does not. 34.7% of tablets include battery health tools.
  • Allows manual ISO
    Blackview Tab 20 (4GB + 128GB) allows manual ISO adjustment, the average tablet does not. 42.5% of tablets feature manual ISO.
    What it is: Allows the user to manually set the camera's light sensitivity (ISO) to control exposure and noise levels.
    When it matters: When you want to control the camera's light sensitivity to minimize grain or capture fast motion.

    Importance: LOW

    Blackview Tab 20 (4GB + 128GB) allows manual ISO adjustment, the average tablet does not. 42.5% of tablets feature manual ISO.
  • Includes on-device AI
    Blackview Tab 20 (4GB + 128GB) includes on-device AI, the average tablet does not. 32.1% of tablets include on-device AI.
    Needs stronger row-level evidence for true on-device/local AI support
    What it is: A tablet feature related to on-device ai.
    When it matters: When you use smart writing, photo, voice, or search features and want them to work faster or more privately on the tablet itself.

    Importance: MEDIUM

    Blackview Tab 20 (4GB + 128GB) includes on-device AI, the average tablet does not. 32.1% of tablets include on-device AI.
  • Includes app tracking protection
    Blackview Tab 20 (4GB + 128GB) includes app tracking protection, the average tablet does not. 25.2% of tablets offer app tracking protection.
    What it is: A system-level feature that limits how apps track user behavior across other apps and services.
    When it matters: When you want to stop apps from following your activity across other companies' apps and websites.

    Importance: MEDIUM

    Blackview Tab 20 (4GB + 128GB) includes app tracking protection, the average tablet does not. 25.2% of tablets offer app tracking protection.
  • Newer DDR memory version
    Blackview Tab 20 (4GB + 128GB) supports a newer DDR version than the average tablet (LPDDR4X vs LPDDR3). The average DDR version is LPDDR3.
    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 tablet to combine better speed and efficiency in heavier or longer use.

    Importance: MEDIUM

    Good value: 5

    Blackview Tab 20 (4GB + 128GB) supports a newer DDR version than the average tablet (LPDDR4X vs LPDDR3). The average DDR version is LPDDR3.LPDDR4X vs LPDDR3
  • Has a flash
    Blackview Tab 20 (4GB + 128GB) features a built-in flash, the average tablet does not. 45.2% of tablets include a flash.
    What it is: Includes an integrated light source to illuminate nearby subjects in low-light scenes.
    When it matters: When you need quick document shots, close-up photos, or a simple built-in light in darker places.

    Importance: LOW

    Blackview Tab 20 (4GB + 128GB) features a built-in flash, the average tablet does not. 45.2% of tablets include a flash.
  • Better chipset
    Blackview Tab 20 (4GB + 128GB) uses the UNISOC T310 chipset, while the average tablet uses MediaTek MT8169A.
    What it is: The official model name of the processor platform used in the tablet.
    When it matters: When you want the tablet to feel fast in everyday use, handle heavier apps smoothly, or stay capable for longer.

    Importance: HIGH

    Blackview Tab 20 (4GB + 128GB) uses the UNISOC T310 chipset, while the average tablet uses MediaTek MT8169A.UNISOC T310 vs MediaTek MT8169A
  • 2x more storage
    Blackview Tab 20 (4GB + 128GB) has more internal storage than the average tablet (128 GB vs 64 GB). The average tablet provides 64 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: >=128 GB

    Blackview Tab 20 (4GB + 128GB) has more internal storage than the average tablet (128 GB vs 64 GB). The average tablet provides 64 GB of internal storage.128 GB vs 64 GB
  • Newer DDR memory version
    Blackview Tab 20 (4GB + 128GB) supports a newer DDR version than the average tablet (LPDDR4X vs LPDDR3). The average DDR version is LPDDR3.
  • Better chipset
    Blackview Tab 20 (4GB + 128GB) uses the UNISOC T310 chipset, while the average tablet uses MediaTek MT8169A.
  • 2x more storage
    Blackview Tab 20 (4GB + 128GB) has more internal storage than the average tablet (128 GB vs 64 GB). The average tablet provides 64 GB of internal storage.
  • 23.1% faster GPU clock
    Blackview Tab 20 (4GB + 128GB) has a higher GPU frequency than the average tablet (800 MHz vs 650 MHz). The average tablet has GPU frequency of 650 MHz.
  • 1,920 GB more external memory supported
    Blackview Tab 20 (4GB + 128GB) has more maximum external memory than the average tablet (2,048 GB vs 128 GB). The average tablet supports 128 GB of maximum external memory.
  • 14.3% smaller process node
    Blackview Tab 20 (4GB + 128GB) uses a smaller process node than the average tablet (12 nm vs 14 nm). The average tablet uses a process node of 14 nm.
  • Allows manual ISO
    Blackview Tab 20 (4GB + 128GB) allows manual ISO adjustment, the average tablet does not. 42.5% of tablets feature manual ISO.
  • Has a flash
    Blackview Tab 20 (4GB + 128GB) features a built-in flash, the average tablet does not. 45.2% of tablets include a flash.
  • 1 more flash LEDs
    Blackview Tab 20 (4GB + 128GB) has more flash LEDs than the average tablet (1 vs 0). The average tablet has 0 flash LEDs.
  • Includes battery health monitoring
    Blackview Tab 20 (4GB + 128GB) features battery health monitoring, the average tablet does not. 34.7% of tablets include battery health tools.
  • Supports Galileo
    Blackview Tab 20 (4GB + 128GB) supports Galileo satellite navigation, the average tablet does not. 43% of tablets include Galileo support.
  • Includes on-device AI
    Blackview Tab 20 (4GB + 128GB) includes on-device AI, the average tablet does not. 32.1% of tablets include on-device AI.
  • Includes app tracking protection
    Blackview Tab 20 (4GB + 128GB) includes app tracking protection, the average tablet does not. 25.2% of tablets offer app tracking protection.
  • Allows app offloading
    Blackview Tab 20 (4GB + 128GB) allows app offloading, the average tablet does not. 23.7% of tablets support this feature.
  • Supports full-page screenshots
    Blackview Tab 20 (4GB + 128GB) supports full-page screenshots, the average tablet does not. 49.5% of tablets support full-page screenshots.
  • Supports dynamic theme
    Blackview Tab 20 (4GB + 128GB) features dynamic themes, the average tablet does not. 29.1% of tablets offer dynamic theming.
  • Has clipboard warnings
    Blackview Tab 20 (4GB + 128GB) has clipboard warnings, the average tablet does not. 38% of tablets include clipboard warnings.
  • Has extra dim mode
    Blackview Tab 20 (4GB + 128GB) features extra dim mode, the average tablet does not. 33.4% of tablets support extra diming.
  • 6 year/s newer release date
    Blackview Tab 20 (4GB + 128GB) has a newer release date than the average tablet (2025 vs 2019).
  • Good for kids
    Blackview Tab 20 (4GB + 128GB) is suitable for kids, the average tablet is not. 23.6% of tablets are suitable for kids.
  • 40 mm shorter
    Blackview Tab 20 (4GB + 128GB) is shorter than the average tablet (160 mm vs 200 mm). The average tablet is 200 mm tall.

Total
Overall
Performance
Camera
Battery
Connectivity
Software & Features
Design
  • 2 fewer CPU threads
    Blackview Tab 20 (4GB + 128GB) has less CPU threads than the average tablet (4 vs 6). The average tablet has 6 CPU threads.
  • 533 MHz slower RAM speed
    Blackview Tab 20 (4GB + 128GB) has a lower RAM speed than the average tablet (1,333 MHz vs 1,866 MHz). The average tablet has RAM speed of 1,866 MHz.
  • 3 fewer GPU execution units
    Blackview Tab 20 (4GB + 128GB) has less GPU execution units than the average tablet (1 vs 4). The average tablet has 4 GPU execution units.
  • 28.9% lower memory bandwidth
    Blackview Tab 20 (4GB + 128GB) has a lower memory bandwidth than the average tablet (10.6 GB/s vs 14.9 GB/s). The average tablet has memory bandwidth of 14.9 GB/s.
  • 1,360 points lower PassMark benchmark
    Blackview Tab 20 (4GB + 128GB) achieves a lower PassMark benchmark result than the average tablet (1,051 points vs 2,411 points). The average tablet scores 2,411 points in PassMark.
  • 1 fewer memory channels
    Blackview Tab 20 (4GB + 128GB) has less memory channels than the average tablet (1 vs 2). The average tablet has 2 memory channels.
  • 33.5% lower pixel density
    Blackview Tab 20 (4GB + 128GB) has a lower pixel density than the average tablet (149 ppi vs 224 ppi). The average tablet has pixel density of 224 ppi.
  • Worse display glass type
    Blackview Tab 20 (4GB + 128GB) uses weaker display glass than the average tablet (Tempered Glass vs Corning Gorilla Glass). Display glass choice still varies across tablets.
  • Lower screen resolution
    Blackview Tab 20 (4GB + 128GB) has a lower screen resolution than the average tablet (1280×800 vs 1920×1200). The average tablet has a resolution of 1920×1200.
  • 75 ppi lower screen sharpness
    Blackview Tab 20 (4GB + 128GB) has a lower screen sharpness than the average tablet (149 ppi vs 224 ppi). The average tablet has screen sharpness of 224 ppi.
  • 51 nits lower peak brightness
    Blackview Tab 20 (4GB + 128GB) has a lower peak brightness than the average tablet (350 nits vs 401 nits). The average tablet reaches 401 nits peak brightness.
  • 50 nits lower typical brightness
    Blackview Tab 20 (4GB + 128GB) has a lower typical brightness than the average tablet (350 nits vs 400 nits). The average tablet reaches 400 nits typical brightness.
  • 16.7% lower touch sampling rate
    Blackview Tab 20 (4GB + 128GB) has a lower touch sampling rate than the average tablet (120 Hz vs 144 Hz). The average tablet has touch sampling rate of 144 Hz.
  • No timelapse video
    Blackview Tab 20 (4GB + 128GB) does not support timelapse video, the average tablet does. 54.5% of tablets include timelapse modes.
  • No panorama mode
    Blackview Tab 20 (4GB + 128GB) does not have a panorama mode, the average tablet does. 78.5% of tablets include panorama features.
  • 3.7 hours shorter battery life
    Blackview Tab 20 (4GB + 128GB) offers shorter battery life than the average tablet (6.3 hours vs 10 hours). The average tablet offers 10 hours of battery life.
    video playback
  • 44.4% slower charging speed
    Blackview Tab 20 (4GB + 128GB) supports slower charging than the average tablet (10 W vs 18 W). The average tablet supports charging speed of 18 W.
  • 9.1% smaller battery capacity
    Blackview Tab 20 (4GB + 128GB) has a lower battery capacity than the average tablet (6,000 mAh vs 6,600 mAh). The average tablet battery has capacity of 6,600 mAh.
  • No LTE support
    Blackview Tab 20 (4GB + 128GB) does not support LTE, the average tablet does. 63.3% of tablets support LTE.
  • No cellular module
    Blackview Tab 20 (4GB + 128GB) does not have a cellular module, the average tablet does. 59.7% of tablets include a cellular module.
  • No compass
    Blackview Tab 20 (4GB + 128GB) does not have a compass, the average tablet does. 61.1% of tablets include a built-in compass.
  • No gyroscope
    Blackview Tab 20 (4GB + 128GB) does not have a gyroscope, the average tablet does. 72.6% of tablets feature a gyroscope.
  • Shorter update support
    Blackview Tab 20 (4GB + 128GB) offers shorter update support than the average tablet (short vs medium). The average tablet gets medium of update support.
  • 1.4 mm thicker
    Blackview Tab 20 (4GB + 128GB) is thicker than the average tablet (9.4 mm vs 8 mm). The average tablet is 8 mm thick.
  • 63 mm wider
    Blackview Tab 20 (4GB + 128GB) is wider than the average tablet (241.5 mm vs 178.5 mm). The average tablet is 178.5 mm wide.
  • 5% heavier
    Blackview Tab 20 (4GB + 128GB) is heavier than the average tablet (514.5 g vs 490 g). The average tablet weighs 490 g.
  • 3.7 hours shorter battery life
    Blackview Tab 20 (4GB + 128GB) offers shorter battery life than the average tablet (6.3 hours vs 10 hours). The average tablet offers 10 hours of battery life.
    video playback
    What it is: An estimate of how long the tablet can run on one charge.
    When it matters: When you do not want to recharge the tablet too often.

    Importance: HIGH

    Good value: >10 hours

    Blackview Tab 20 (4GB + 128GB) offers shorter battery life than the average tablet (6.3 hours vs 10 hours). The average tablet offers 10 hours of battery life.6.3 hours vs 10 hours
  • No LTE support
    Blackview Tab 20 (4GB + 128GB) does not support LTE, the average tablet does. 63.3% of tablets support LTE.
    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

    Blackview Tab 20 (4GB + 128GB) does not support LTE, the average tablet does. 63.3% of tablets support LTE.
  • 33.5% lower pixel density
    Blackview Tab 20 (4GB + 128GB) has a lower pixel density than the average tablet (149 ppi vs 224 ppi). The average tablet has pixel density of 224 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 read a lot, look at fine details, or want text and graphics to look cleaner at close range.

    Importance: HIGH

    Good value: >250 ppi

    Blackview Tab 20 (4GB + 128GB) has a lower pixel density than the average tablet (149 ppi vs 224 ppi). The average tablet has pixel density of 224 ppi.149 ppi vs 224 ppi
  • Shorter update support
    Blackview Tab 20 (4GB + 128GB) offers shorter update support than the average tablet (short vs medium). The average tablet gets medium of update support.
    What it is: The expected length of software update support for the tablet.
    When it matters: When you care about how long the tablet should keep getting software updates.

    Importance: HIGH

    Blackview Tab 20 (4GB + 128GB) offers shorter update support than the average tablet (short vs medium). The average tablet gets medium of update support.short vs medium
  • Worse display glass type
    Blackview Tab 20 (4GB + 128GB) uses weaker display glass than the average tablet (Tempered Glass vs Corning Gorilla Glass). Display glass choice still varies across tablets.
    What it is: The specific brand or model of strengthened glass used to protect the screen from scratches and drops.
    When it matters: When drops, scratches, or long-term screen wear are a concern in daily use.

    Importance: HIGH

    Blackview Tab 20 (4GB + 128GB) uses weaker display glass than the average tablet (Tempered Glass vs Corning Gorilla Glass). Display glass choice still varies across tablets.Tempered Glass vs Corning Gorilla Glass
  • No timelapse video
    Blackview Tab 20 (4GB + 128GB) does not support timelapse video, the average tablet does. 54.5% of tablets include timelapse modes.
    What it is: A recording mode that captures frames at long intervals to accelerate the passage of time in the final video.
    When it matters: When you want to condense long events like sunsets or traffic into short, dynamic clips.

    Importance: LOW

    Blackview Tab 20 (4GB + 128GB) does not support timelapse video, the average tablet does. 54.5% of tablets include timelapse modes.
  • No cellular module
    Blackview Tab 20 (4GB + 128GB) does not have a cellular module, the average tablet does. 59.7% of tablets include a 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

    Blackview Tab 20 (4GB + 128GB) does not have a cellular module, the average tablet does. 59.7% of tablets include a cellular module.
  • Lower screen resolution
    Blackview Tab 20 (4GB + 128GB) has a lower screen resolution than the average tablet (1280×800 vs 1920×1200). The average tablet has a resolution of 1920×1200.
    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 text and media to look sharper on a larger display.

    Importance: HIGH

    Blackview Tab 20 (4GB + 128GB) has a lower screen resolution than the average tablet (1280×800 vs 1920×1200). The average tablet has a resolution of 1920×1200.1280×800 vs 1920×1200
Total
Performance
Display
Camera
Battery
Connectivity
Software & Features
Design

Graphic comparison of Blackview Tab 20 (4GB + 128GB) and other tablets

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Third-party reviews

What customers like about Blackview Tab 20 (4GB + 128GB)?

  • Affordable price and excellent value for money
  • Sleek and lightweight design, making it highly portable
  • Solid battery life for everyday use, typically lasting a full day
  • Good screen clarity and vivid colors when viewing media like YouTube
  • Responsive performance for light gaming, reading, and web browsing
  • Includes useful accessories like a protective case and pre-applied screen protector

What customers dislike about Blackview Tab 20 (4GB + 128GB)?

  • Hardware durability issues, specifically reports of charging ports failing within 2 months
  • Slow charging times compared to other modern tablets
  • Occasional software freezes or the device rebooting to system pages
  • Pale screen colors and low contrast when first turned on, though media playback is better
  • Difficulties with customer support when attempting to resolve technical faults

Expert reviews

T
tabletgids.com
20/03/2026
Blackview Tab 20 WiFi 10 inch Tablet Grijs

The Blackview Tab 20 WiFi is an budget-friendly 10.1-inch tablet featuring Android 15 (Doke OS_P 4.1) and a lightweight 514.5g design suitable for daily productivity and media consumption. It operates on a Unisoc T310 processor with 4GB physical RAM (expandable to 12GB) and supports up to 2TB TF cards for storage expansion. Key pros include Wi-Fi 6 connectivity, dual "Smart-K Box"...Read more

(Translated)Show original

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