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Ulefone Armor 21 (16GB + 256GB) Review | 197 Data compared

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  • Avg. price: ~£210
  • RAM capacity: 16 GB
  • Internal storage: 256 GB
  • Screen size: 6.58 inches
  • Main camera megapixels: 64 MP & 24 MP

Ulefone Armor 21 (16GB + 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%

6.9

Technical Score

10.0%

7.9

User score

Very 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%

7.6

Performance & Hardware

18.0%

6.4

Camera

15.0%

6.3

Display

15.0%

7.7

Battery

10.0%

7.1

Software

10.0%

7.5

Connectivity

4.0%

4.2

Audio

3.0%

6.0

Design

Good
7.9

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%

8.4

User reviews

30.0%

6.9

Popularity

Very good
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    Best prices

    Best rankings

    ?

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

    Technical Specifications of smartphone Ulefone Armor 21 (16GB + 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%

    6.4

    Camera

    15.0%

    6.3

    Display

    15.0%

    7.7

    Battery

    10.0%

    7.1

    Software

    10.0%

    7.5

    Connectivity

    4.0%

    4.2

    Audio

    3.0%

    6.0

    Design

    6.9
    Ulefone Armor 21 (16GB + 256GB) has a technical score of 6.94 points, which is lower than 60.6% 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%

    8.4

    User reviews

    30.0%

    6.9

    Popularity

    7.9
    Ulefone Armor 21 (16GB + 256GB) has a user score of 7.93 points, which is lower than 72.9% 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.
    6.9
    Ulefone Armor 21 (16GB + 256GB) has a popularity of 6.9 points, which is higher than 58.2% 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%

    9.4

    Price

    8.0
    Ulefone Armor 21 (16GB + 256GB) has a quality-to-price ratio of 8 points, which is higher than 54.7% 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

    Ulefone
    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

    MediaTek Helio G99
    Ulefone Armor 21 (16GB + 256GB) uses the MediaTek Helio G99 processor model which is slower than processors in 76.2% of smartphones and equal to processors in 4.1% of smartphones.
    RAM capacity
    What it is: The amount of volatile memory available for running apps and multitasking.
    When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

    Importance: HIGH

    Good value: >12 GB

    16 GB
    Ulefone Armor 21 (16GB + 256GB) has a RAM capacity of 16 GB which is larger than the RAM capacity of 83.5% of smartphones and equal to that of 12% of smartphones.
    Internal storage
    What it is: The total built-in space available for apps, media, and files.
    When it matters: When you keep large libraries of photos, videos, and apps directly on your device.

    Importance: HIGH

    Good value: >256 GB

    256 GB
    Ulefone Armor 21 (16GB + 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 Ulefone Armor 21 (16GB + 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
    Android 13
    Ulefone Armor 21 (16GB + 256GB) uses the Android operating system, which outperforms that of 1% of smartphones.
    Android 13
    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 13
    Ulefone Armor 21 (16GB + 256GB) runs Android version Android 13 which is older than that found in 50.6% of smartphones and equal to that in 16.5% 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 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

    64 MP & 24 MP
    Ulefone Armor 21 (16GB + 256GB) has a main camera resolution of 64 MP & 24 MP MP which is higher than that of 85.3% of smartphones of smartphones.
    Main camera aperture
    What it is: The size of the lens opening (f-stop) that controls light entry. A lower f-number indicates a wider aperture, allowing better low-light shots.
    When it matters: When you want better low-light performance or a natural background blur effect.

    Importance: HIGH

    f/1.8 & f/1.9
    Ulefone Armor 21 (16GB + 256GB) has a main camera aperture of f/1.8 & f/1.9 which is wider than that of 71.2% of smartphones and equal to that of 0.1% 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

    41 mm²
    Ulefone Armor 21 (16GB + 256GB) has a main camera sensor area of 41 mm² which is larger than the main camera sensor area of 54.2% of smartphones and equal to that of 5.9% of smartphones.
    Main camera pixel size
    What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.
    When it matters: When you shoot in low light and want reduced noise in your photos.

    Importance: MEDIUM

    Good value: ≥1.2 µm

    0.8 µm
    1.6 binned
    Ulefone Armor 21 (16GB + 256GB) has a main camera pixel size of 0.8 µm which is larger than in 35.5% of smartphones and equal to the size in 21.9% of smartphones.
    1.6 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 256GB) supports Wi-Fi connectivity. 100% of smartphones offer Wi-Fi support.
    Show more
    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

    6.58 inches
    Ulefone Armor 21 (16GB + 256GB) has a screen size of 6.58 inches which is smaller than the screens of 68.7% of smartphones and equal to those of 2.4% 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 2408 px
    Ulefone Armor 21 (16GB + 256GB) has a screen resolution of 1080 x 2408 px which is higher than that of 57.4% of smartphones and equal to that of 4.2% 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

    401 ppi
    Ulefone Armor 21 (16GB + 256GB) has a pixel density of 401 ppi which is higher than that of 58.5% of smartphones and equal to that of 3% 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
    Ulefone Armor 21 (16GB + 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

    120 Hz
    Ulefone Armor 21 (16GB + 256GB) 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.
    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 general idea of how large the battery is physically.

    Importance: HIGH

    Good value: >5000 mAh

    9600 mAh
    Ulefone Armor 21 (16GB + 256GB) has a battery capacity of 9600 mAh which is larger than the batteries in 94.2% of smartphones and equal to those in 0.4% 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

    33 W
    Ulefone Armor 21 (16GB + 256GB) supports charging speeds of 33 W which is faster than in 38.9% of smartphones and equal to speeds in 12% 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
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 256GB) does not support wireless charging. 25.3% of smartphones support wireless charging.
    Show more
    Stereo speakers
    What it is: A setup involving two or more speakers to create a left-right audio separation for immersive sound.
    When it matters: When you watch videos or play games without headphones and want immersive sound.

    Importance: MEDIUM

    no
    Ulefone Armor 21 (16GB + 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
    Ulefone Armor 21 (16GB + 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

    2
    Ulefone Armor 21 (16GB + 256GB) includes 2 microphones, which is more than in 10.5% of smartphones and equal to the number in 66.6% 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

    yes
    Ulefone Armor 21 (16GB + 256GB) includes 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
    Ulefone Armor 21 (16GB + 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

    176 mm
    Ulefone Armor 21 (16GB + 256GB) has a height of 176 mm which is taller than 95.8% of smartphones and equal to that of 0.1% 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

    81.6 mm
    Ulefone Armor 21 (16GB + 256GB) has a width of 81.6 mm which is wider than 91.8% of smartphones and equal to that of 0.1% 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

    18.1 mm
    Ulefone Armor 21 (16GB + 256GB) has a thickness of 18.1 mm which is thicker than 96.1% of smartphones 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

    400 g
    Ulefone Armor 21 (16GB + 256GB) weighs 400 g which is heavier than 97.2% of smartphones and equal to the weight of 0.1% 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

    256608 cm³
    Ulefone Armor 21 (16GB + 256GB) has a device volume of 256608 cm³ which is larger than 96.6% of smartphones and equal to that of 0.1% of smartphones.
    Show more

    Ulefone Armor 21 (16GB + 256GB) vs the average smartphone

    • 92% larger battery capacity
      Ulefone Armor 21 (16GB + 256GB) has a larger battery capacity than the average smartphone (9600 mAh vs 5000 mAh). The average smartphone battery is 5000 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

      Ulefone Armor 21 (16GB + 256GB) has a larger battery capacity than the average smartphone (9600 mAh vs 5000 mAh). The average smartphone battery is 5000 mAh.9600 mAh vs 5000 mAh
    • 8 GB more RAM
      Ulefone Armor 21 (16GB + 256GB) has more RAM capacity than the average smartphone (16 GB vs 8 GB). The average smartphone has 8 GB of RAM.
      What it is: The amount of volatile memory available for running apps and multitasking.
      When it matters: When you use multiple apps at once or want smoother multitasking without reloads.

      Importance: HIGH

      Good value: >12 GB

      Ulefone Armor 21 (16GB + 256GB) has more RAM capacity than the average smartphone (16 GB vs 8 GB). The average smartphone has 8 GB of RAM.16 GB vs 8 GB
    • Supports reverse wireless charging
      Ulefone Armor 21 (16GB + 256GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
      What it is: A feature that allows the smartphone to act as a wireless charging pad for other devices like earbuds.
      When it matters: When your earbuds or smartwatch die and you need to charge them using your phone.

      Importance: LOW

      Ulefone Armor 21 (16GB + 256GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
    • 69.1% higher PCMark Work 3.0 battery benchmark
      Ulefone Armor 21 (16GB + 256GB) has a higher PCMark Work 3.0 battery benchmark score than the average smartphone (1329 min vs 786 min). The average score is 786 min.
      What it is: A synthetic benchmark that measures battery life by simulating continuous productivity tasks until depletion.
      When it matters: When you want to compare battery endurance under continuous productivity workloads.

      Importance: MEDIUM

      Good value: >800

      Ulefone Armor 21 (16GB + 256GB) has a higher PCMark Work 3.0 battery benchmark score than the average smartphone (1329 min vs 786 min). The average score is 786 min.1329 min vs 786 min
    • Higher-resolution main camera
      Ulefone Armor 21 (16GB + 256GB) has a higher main camera resolution than the average smartphone (64 MP & 24 MP vs 50 MP & 8 MP ). The average smartphone main camera has 50 MP & 8 MP megapixels.
      What it is: The resolution of the primary rear camera sensor, measured in millions of pixels (MP). Higher megapixels can capture more detail.
      When it matters: When you want to capture high-resolution images that can be cropped or printed large.

      Importance: HIGH

      Good value: >50 MP

      Ulefone Armor 21 (16GB + 256GB) has a higher main camera resolution than the average smartphone (64 MP & 24 MP vs 50 MP & 8 MP ). The average smartphone main camera has 50 MP & 8 MP megapixels.64 MP & 24 MP vs 50 MP & 8 MP
    • 55.1% faster memory speed
      Ulefone Armor 21 (16GB + 256GB) supports faster memory speed than the average smartphone (4266 MHz vs 2750 MHz). The average smartphone supports 2750 MHz memory speed.
      What it is: The rate at which the device’s RAM can transfer data, measured in MHz or GB/s.
      When it matters: When you need faster app loading times and snappier overall system responsiveness.

      Importance: MEDIUM

      Good value: >3200 MHz

      Ulefone Armor 21 (16GB + 256GB) supports faster memory speed than the average smartphone (4266 MHz vs 2750 MHz). The average smartphone supports 2750 MHz memory speed.4266 MHz vs 2750 MHz
    • Has a rugged design
      Ulefone Armor 21 (16GB + 256GB) features a rugged design, the average smartphone does not. 7.5% of smartphones are built for durability.
      What it is: A build reinforced with shock-absorbing materials to withstand drops, extreme temperatures, and harsh environments.
      When it matters: When you work in construction or outdoors and need a phone that can take a beating.

      Importance: LOW

      Ulefone Armor 21 (16GB + 256GB) features a rugged design, the average smartphone does not. 7.5% of smartphones are built for durability.
    • Has FM radio
      Ulefone Armor 21 (16GB + 256GB) features an FM radio, the average smartphone does not. 33.7% of smartphones include an FM tuner.
      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

      Ulefone Armor 21 (16GB + 256GB) features an FM radio, the average smartphone does not. 33.7% of smartphones include an FM tuner.
    • 8 GB more RAM
      Ulefone Armor 21 (16GB + 256GB) has more RAM capacity than the average smartphone (16 GB vs 8 GB). The average smartphone has 8 GB of RAM.
    • 55.1% faster memory speed
      Ulefone Armor 21 (16GB + 256GB) supports faster memory speed than the average smartphone (4266 MHz vs 2750 MHz). The average smartphone supports 2750 MHz memory speed.
    • Higher-resolution main camera
      Ulefone Armor 21 (16GB + 256GB) has a higher main camera resolution than the average smartphone (64 MP & 24 MP vs 50 MP & 8 MP ). The average smartphone main camera has 50 MP & 8 MP megapixels.
    • Wider main camera aperture
      Ulefone Armor 21 (16GB + 256GB) has a wider main camera aperture than the average smartphone (f/1.8 & f/1.9 vs f/1.8 & f/2.4 & f/2.4 ). The average aperture value is f/1.8 & f/2.4 & f/2.4 .
    • 28.1% larger main camera sensor area
      Ulefone Armor 21 (16GB + 256GB) has a larger main camera sensor area than the average smartphone (41 mm² vs 32 mm²). The average main camera sensor area is 32 mm².
    • 1 more external displays supported
      Ulefone Armor 21 (16GB + 256GB) supports more external displays than the average smartphone (2 vs 1). The average smartphone supports 1 external displays.
    • Has a barometer
      Ulefone Armor 21 (16GB + 256GB) features a barometer, the average smartphone does not. 20% of smartphones include a barometer.
    • Higher screen resolution
      Ulefone Armor 21 (16GB + 256GB) has a higher screen resolution than the average smartphone (1080x 2408 px vs 1080x 2400 px ). The average smartphone resolution is 1080x 2400 px .
    • 1.5% higher pixel density
      Ulefone Armor 21 (16GB + 256GB) has a higher pixel density than the average smartphone (401 ppi vs 395 ppi). The average smartphone has a pixel density of 395 ppi.
    • 92% larger battery capacity
      Ulefone Armor 21 (16GB + 256GB) has a larger battery capacity than the average smartphone (9600 mAh vs 5000 mAh). The average smartphone battery is 5000 mAh.
    • Supports reverse wireless charging
      Ulefone Armor 21 (16GB + 256GB) supports reverse wireless charging, the average smartphone does not. 25.5% of smartphones offer reverse wireless charging.
    • 69.1% higher PCMark Work 3.0 battery benchmark
      Ulefone Armor 21 (16GB + 256GB) has a higher PCMark Work 3.0 battery benchmark score than the average smartphone (1329 min vs 786 min). The average score is 786 min.
    • Has FM radio
      Ulefone Armor 21 (16GB + 256GB) features an FM radio, the average smartphone does not. 33.7% of smartphones include an FM tuner.
    • Has a 3.5 mm headphone jack
      Ulefone Armor 21 (16GB + 256GB) features a 3.5 mm headphone jack, the average smartphone does not. 45.3% of smartphones include a standard headphone jack.
    • Has a rugged design
      Ulefone Armor 21 (16GB + 256GB) features a rugged design, the average smartphone does not. 7.5% of smartphones are built for durability.
    • Better IP rating
      Ulefone Armor 21 (16GB + 256GB) has a better IP rating than the average smartphone (IP68 vs IP67 ). The average IP rating is IP67 .

    Total
    Performance & Hardware
    Camera
    Connectivity
    Display
    Battery
    Audio
    Design
    • Worse processor
      Ulefone Armor 21 (16GB + 256GB) uses a worse processor than the average smartphone (MediaTek Helio G99 vs Qualcomm Snapdragon 6s Gen 3 ).
    • 77.6% lower 3DMark Steel Nomad benchmark
      Ulefone Armor 21 (16GB + 256GB) performs worse in 3DMark Steel Nomad than the average smartphone (136 vs 608). The average smartphone scores 608.
    • 24.1% lower Geekbench 6 single-core benchmark score
      Ulefone Armor 21 (16GB + 256GB) performs worse in Geekbench 6 single-core than the average smartphone (715 vs 942). The average smartphone scores 942 in the Geekbench 6 single-core test.
    • 16.7% higher TDP (less efficient)
      Ulefone Armor 21 (16GB + 256GB) has a higher TDP than the average smartphone (5 W vs 6 W). The average smartphone has a TDP of 6 W.
    • 22.5% lower Geekbench 6 multi-core benchmark score
      Ulefone Armor 21 (16GB + 256GB) performs worse in Geekbench 6 multi-core than the average smartphone (1,962 vs 2,533). The average smartphone scores 2,533 in the Geekbench 6 multi-core test.
      average for the MediaTek Helio G99 SoC
    • 14.3% lower maximum RAM capacity
      Ulefone Armor 21 (16GB + 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
      Ulefone Armor 21 (16GB + 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.
    • 33.2% lower memory bandwidth
      Ulefone Armor 21 (16GB + 256GB) has lower memory bandwidth than the average smartphone (17.1 GB/s vs 25.6 GB/s). The average smartphone has a bandwidth of 25.6 GB/s.
    • Lacks focus mode
      Ulefone Armor 21 (16GB + 256GB) does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
    • No battery health monitoring
      Ulefone Armor 21 (16GB + 256GB) lacks battery health monitoring, the average smartphone includes it. 66.5% of smartphones provide battery health stats.
    • Lacks instant markup
      Ulefone Armor 21 (16GB + 256GB) does not support instant markup, the average smartphone does. 52.7% of smartphones include instant markup tools.
    • No Wi-Fi password sharing
      Ulefone Armor 21 (16GB + 256GB) does not support Wi-Fi password sharing, the average smartphone does. 57.9% of smartphones allow easy Wi-Fi sharing.
    • Older Android version
      Ulefone Armor 21 (16GB + 256GB) runs an older Android version than the average smartphone (Android 13 vs Android 14 ). The average smartphone runs Android version Android 14 .
    • No 5G connectivity
      Ulefone Armor 21 (16GB + 256GB) does not support 5G connectivity, the average smartphone does. 66.9% of smartphones are 5G compatible.
    • Inferior display type
      Ulefone Armor 21 (16GB + 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.
    • Worse display glass type
      Ulefone Armor 21 (16GB + 256GB) uses a worse display glass type than the average smartphone (Corning Gorilla Glass vs Corning Gorilla Glass 5 ). 0.00% of smartphones use the better glass type.
    • 0.09 inches smaller screen size
      Ulefone Armor 21 (16GB + 256GB) has a smaller screen size than the average smartphone (6.6 inches vs 6.67 inches). The average smartphone has a screen size of 6.67 inches.
    • 50% slower wireless charging speed
      Ulefone Armor 21 (16GB + 256GB) has a slower wireless charging speed than the average smartphone (10 W vs 20 W). The average smartphone wireless charging speed is 20 W.
    • No stereo speakers
      Ulefone Armor 21 (16GB + 256GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature stereo speakers.
    • No aptX HD
      Ulefone Armor 21 (16GB + 256GB) does not support aptX HD, the average smartphone does. 50.4% of smartphones support aptX HD.
    • No aptX support
      Ulefone Armor 21 (16GB + 256GB) does not support aptX, the average smartphone does. 50.2% of smartphones support aptX.
    • 2.04x heavier
      Ulefone Armor 21 (16GB + 256GB) is heavier than the average smartphone (400 g vs 196.2 g). The average smartphone weighs 196.2 g.
    • 9.8 mm thicker
      Ulefone Armor 21 (16GB + 256GB) is thicker than the average smartphone (18.1 mm vs 8.3 mm). The average smartphone has a thickness of 8.3 mm.
    • 12.4 mm taller
      Ulefone Armor 21 (16GB + 256GB) is taller than the average smartphone (176 mm vs 163.6 mm). The average smartphone has a height of 163.6 mm.
    • 5.6 mm wider
      Ulefone Armor 21 (16GB + 256GB) is wider than the average smartphone (81.6 mm vs 76 mm). The average smartphone has a width of 76 mm.
    • 2.62x larger volume
      Ulefone Armor 21 (16GB + 256GB) has a larger volume than the average smartphone (256608 cm³ vs 97800 cm³). The average smartphone volume is 97800 cm³.
    • Inferior display type
      Ulefone Armor 21 (16GB + 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

      Ulefone Armor 21 (16GB + 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
      Ulefone Armor 21 (16GB + 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

      Ulefone Armor 21 (16GB + 256GB) does not support 5G connectivity, the average smartphone does. 66.9% of smartphones are 5G compatible.
    • No stereo speakers
      Ulefone Armor 21 (16GB + 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

      Ulefone Armor 21 (16GB + 256GB) does not have stereo speakers, the average smartphone does. 64.5% of smartphones feature stereo speakers.
    • 2.04x heavier
      Ulefone Armor 21 (16GB + 256GB) is heavier than the average smartphone (400 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

      Ulefone Armor 21 (16GB + 256GB) is heavier than the average smartphone (400 g vs 196.2 g). The average smartphone weighs 196.2 g.400.0 g vs 196.2 g
    • Worse processor
      Ulefone Armor 21 (16GB + 256GB) uses a worse processor than the average smartphone (MediaTek Helio G99 vs Qualcomm Snapdragon 6s 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

      Ulefone Armor 21 (16GB + 256GB) uses a worse processor than the average smartphone (MediaTek Helio G99 vs Qualcomm Snapdragon 6s Gen 3 ).MediaTek Helio G99 vs Qualcomm Snapdragon 6s Gen 3
    • No aptX HD
      Ulefone Armor 21 (16GB + 256GB) does not support aptX HD, the average smartphone does. 50.4% of smartphones support aptX HD.
      What it is: A Bluetooth codec capable of transmitting high-definition (24-bit) audio wirelessly.
      When it matters: When you want to stream high-definition music over Bluetooth.

      Importance: LOW

      Ulefone Armor 21 (16GB + 256GB) does not support aptX HD, the average smartphone does. 50.4% of smartphones support aptX HD.
    • Lacks focus mode
      Ulefone Armor 21 (16GB + 256GB) does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
      What it is: A feature that helps users reduce distractions by filtering notifications, limiting app access, or customizing the interface during specific activities or time periods.
      When it matters: When you need to silence distractions to concentrate on work or rest.

      Importance: LOW

      Ulefone Armor 21 (16GB + 256GB) does not have a focus mode, the average smartphone does. 60.4% of smartphones include a dedicated focus mode.
    • No battery health monitoring
      Ulefone Armor 21 (16GB + 256GB) lacks battery health monitoring, the average smartphone includes it. 66.5% of smartphones provide battery health stats.
      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 want to know if your battery is degrading and needs replacement.

      Importance: LOW

      Ulefone Armor 21 (16GB + 256GB) lacks battery health monitoring, the average smartphone includes it. 66.5% of smartphones provide battery health stats.
    Total
    Performance & Hardware
    Software
    Connectivity
    Display
    Battery
    Audio
    Design

    Graphic comparison of Ulefone Armor 21 (16GB + 256GB) and other smartphones

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    Third-party reviews

    What customers like about Ulefone Armor 21 (16GB + 256GB)?

    • Extremely durable and rugged construction with IP68/IP69K and MIL-STD-810H ratings, capable of surviving drops, high pressure, and submersion in water.
    • Exceptional battery life, with a 9600 mAh capacity that can last two to four days with normal to heavy use.
    • Very loud 122dB speaker that can make an external portable speaker redundant for outdoor use.
    • Good performance for a rugged phone, handling most modern apps and games on medium to low settings without issues thanks to the MediaTek Helio G99 chipset.
    • A clean, near-stock Android 13 (or 14 in some variants) experience with minimal changes.
    • Inclusion of a 3.5mm physical audio jack and an IR blaster, which are often missing on modern phones.
    • Decent camera quality in good lighting conditions, including a 64MP main sensor and a functional 24MP night vision camera.
    • A large, smooth 6.58-inch FHD+ 120Hz display that is great for watching videos and browsing.
    • Expandable storage (up to 2TB via microSD) and a custom programmable key for launching apps.
    • Supports 33W fast charging and optional pogo pin dock charging.

    What customers dislike about Ulefone Armor 21 (16GB + 256GB)?

    • The phone is very heavy and bulky (around 400g), making it uncomfortable for some users, especially those with small hands, and difficult to keep in a standard pocket.
    • The large rear speaker makes the phone unstable, preventing it from lying flat on a surface unless placed screen-side down.
    • Speaker sound quality is average, not truly 'Hi-Fi' as advertised, and can sound peaky or crackle at highest volumes.
    • Camera performance suffers indoors or in low light compared to some non-rugged competitors.
    • The included case is often seen as a disappointment, adding more bulk and having fragile attachments like the carabiner clip that can break easily.
    • Some users report minor software glitches and potential app incompatibilities, with the need for software updates to fix security issues or improve performance.
    • Requires waiting for the speaker to dry after being submerged in water before the volume returns to normal.
    • Does not support 5G connectivity.
    • Does not support wireless inductive charging, though dock charging is an option (dock sold separately).

    Expert reviews

    M
    makeuseof.com
    ?
    24/08/2023
    Ulefone Armor 21 Review: Loud, Strong, and Uncomfortable

    MakeUseOf reviewed the Ulefone Armor 21, highlighting its extreme durability with IP68/IP69K ratings and MIL-STD-810H certification, alongside a substantial 9,600mAh battery offering over 48 hours of normal use. While the phone features a powerful 122dB loudspeaker, its audio quality can be "peaky" at high volumes, and its design makes the phone unstable on flat surfaces....Read more

    S
    smartzone.de
    ?
    27/07/2023
    Ulefone Armor 21 Review - Surprisingly Strong Outdoor Phone

    The Ulefone Armor 21 is a durable, 400g rugged smartphone featuring IP68/IP69K/MIL-STD-810H certifications and a standout 122dB "Infinite Halo" speaker on the rear. Powered by a MediaTek Helio G99 chipset, 8GB RAM, and a 9600mAh battery, it offers strong, long-lasting performance for outdoor use, though its weight and bulk are notable cons. The device features a 64MP main camera and...Read more

    (Translated)Show original
    H
    heise.de
    ?
    04/09/2023
    Ulefone Armor 21 Review: Rugged Phone with Night Vision Camera from 280 Euros

    The Ulefone Armor 21 is a highly durable, IP68/IP69K-rated rugged smartphone featuring a distinct 122dB rear speaker with an "Infinite Halo" RGB light ring, designed for extreme environments. Powered by a MediaTek Helio G99 chipset, the device offers smooth performance with a 120Hz display, a 24MP night vision camera, and a substantial 9600mAh battery. However, the device is heavy...Read more

    (Translated)Show original
    S
    smartzone.de
    ?
    27/07/2023
    Ulefone Armor 21 Review - Surprisingly Strong Outdoor Phone

    The Ulefone Armor 21 is a durable, 400g rugged smartphone featuring IP68/IP69K/MIL-STD-810H certifications and a standout 122dB "Infinite Halo" speaker on the rear. Powered by a MediaTek Helio G99 chipset, 8GB RAM, and a 9600mAh battery, it offers strong, long-lasting performance for outdoor use, though its weight and bulk are notable cons. The device features a 64MP main camera and...Read more

    (Translated)Show original
    H
    heise.de
    ?
    04/09/2023
    Ulefone Armor 21 Review: Rugged Phone with Night Vision Camera from 280 Euros

    The Ulefone Armor 21 is a highly durable, IP68/IP69K-rated rugged smartphone featuring a distinct 122dB rear speaker with an "Infinite Halo" RGB light ring, designed for extreme environments. Powered by a MediaTek Helio G99 chipset, the device offers smooth performance with a 120Hz display, a 24MP night vision camera, and a substantial 9600mAh battery. However, the device is heavy...Read more

    (Translated)Show original

    Video reviews

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