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SJCAM A20 Review | 96 Data compared

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  • Avg. price in UK: ~£110
  • Avg. price in US: ~$150
  • Video resolution: 4K
  • Battery life: 360 min
  • Waterproof depth: 0 m
  • Electronic image stabilization: yes
  • Maximum 4K frame rate: 24 fps

SJCAM A20 review. Compare 96 technical specifications and user reviews to see how it ranks among action cameras and if it is worth buying.

6.5

Overall score

What it is: An overall evaluation of the action camera's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best action cameras on the market.

Score components:

80.0%

6.5

Technical Score

20.0%

?

User score

Good
6.5

Technical Score

What it is: An assessment of the action camera's technical performance, covering eight key areas: video quality, image quality, stabilization, ruggedness, waterproofing, mounting options, connectivity, battery, and design.

When it matters: When you want to compare action cameras based on technical performance and available features.

Score components:

30.0%

5.8

Video

22.0%

7.8

Photo

14.0%

4.8

Ruggedness & Storage

13.0%

6.8

Battery

11.0%

7.0

Connectivity & Audio

10.0%

6.9

Display & Design

Good
?

User score

What it is: A rating that combines user reviews and the total number of reviews received by the action camera.

When it matters: When real-world owner satisfaction and review volume matter to your decision.

Score components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 7.8
    Motorcycle riding

    Score components:

    35.0%

    10

    Electronic image stabilization

    30.0%

    7.2

    Video resolution

    20.0%

    10

    Battery life

    15.0%

    1.0

    Waterproof depth

  • 5.1
    Skiing

    Score components:

    30.0%

    10

    Electronic image stabilization

    25.0%

    1.0

    Horizon leveling

    25.0%

    1.0

    Waterproof depth

    20.0%

    ?

    Minimum operating temperature

  • 4.5
    Low light

    Score components:

    35.0%

    1.0

    HDR mode

    30.0%

    ?

    Sensor size

    20.0%

    1.0

    Color depth

    15.0%

    10

    Electronic image stabilization

  • 7.3
    Long videos

    Score components:

    50.0%

    10

    Battery life

    20.0%

    10

    Removable battery

    15.0%

    1.0

    Fast charging

    15.0%

    1.0

    Charging time

  • 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.

Verdict

The SJCAM A20 is a versatile wearable body and action camera featuring a Sony IMX335 sensor and Novatek NT96660 chipset, capable of recording 4K video at 24fps and capturing 16MP still photos. It is equipped with a 2.33-inch LCD touchscreen, a wide 166-degree 6G aspherical lens, and dual-microphone noise reduction for clear audio. Key pros include its multi-functional design suitable for law enforcement (body cam) or driving (dash cam), an impressive 2650mAh battery providing up to 8 hours of runtime, and a dedicated LED lamp for starlight night vision. However, notable cons include its IP65 rating which is only splash-proof rather than fully submersible without a case, and a relatively low frame rate for 4K video compared to high-end competitors.

Technical Specifications of SJCAM A20

Technical Score

What it is: An assessment of the action camera's technical performance, covering eight key areas: video quality, image quality, stabilization, ruggedness, waterproofing, mounting options, connectivity, battery, and design.

When it matters: When you want to compare action cameras based on technical performance and available features.

Score components:

30.0%

?

Video

22.0%

?

Photo

14.0%

?

Ruggedness & Storage

13.0%

?

Battery

11.0%

?

Connectivity & Audio

10.0%

?

Display & Design

6.5
SJCAM A20 has a technical score of 6.45 points, which is higher than 66.3% of action cameras.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the action camera.

When it matters: When real-world owner satisfaction and review volume matter to your decision.

Score components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
What it is: An indicator based on the number of reviews received by the action camera.
When it matters: When you want to see which action cameras attract the most buyer attention and review activity.
1.0
SJCAM A20 has a popularity of 1 points, which is lower than 83.7% of products in this category.
Ratio quality/price

What it is: An indicator that combines the action camera's overall rating with its cost.

When it matters: When you want to know how much overall quality you get for the price.

Score components:

60.0%

6.5

Overall score

40.0%

9.9

Price

7.5
SJCAM A20 has a quality-to-price ratio of 7.5 points, which is higher than 63.3% of products in this category.
Video resolution
What it is: The listed recording format states maximum capture resolution and frame rate.
When it matters: When video quality matters for your footage.

Importance: HIGH

4K
SJCAM A20 records video at 4K, which is higher than that of 36.1% of action cameras.
Maximum 4K frame rate
What it is: Indicates the highest frame rate available when recording at 4K resolution.
When it matters: When you want detailed footage and still need enough frame rate for action or mild slow motion.

Importance: HIGH

24 fps
SJCAM A20 has a maximum 4K frame rate of 24 fps, which is lower than that of 63.5% of action cameras and equal to that of 4.1% of action cameras.
Maximum 1080p frame rate
What it is: Indicates the highest frame rate available when recording at 1080p resolution.
When it matters: When you want smoother slow motion or fast-action playback while staying at 1080p resolution.

Importance: MEDIUM

60 fps
SJCAM A20 has a maximum 1080p frame rate of 60 fps, which is higher than that of 24.2% of action cameras and equal to that of 34% of action cameras.
Video bitrate
What it is: The amount of video data recorded per second, which affects file size and potential recording quality.
When it matters: When you compare potential video quality and want fewer compression artifacts in demanding scenes.

Importance: HIGH

?
Video codecs
What it is: The video compression formats the camera can use when recording, affecting compatibility, efficiency, and workflow.
When it matters: When compatibility, editing performance, and file efficiency matter in the way you handle video.

Importance: LOW

H.264
SJCAM A20 supports the following video codecs: H.264. Its codec support is more advanced than that of 2.4% of action cameras.
Show more
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

12 MP
SJCAM A20 has a main camera resolution of 12 MP, which is higher than that of 24.6% of action cameras and equal to that of 30.3% of action cameras.
Sensor size
What it is: The sensor format value describes the physical light-collecting area.
When it matters: When you shoot in more difficult lighting.

Importance: HIGH

?
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

?
Photo resolution
What it is: The maximum resolution of still photos captured by the camera, measured in megapixels.
When it matters: When you want more detail for cropping, large displays, or prints; higher photo resolution provides more pixels when image quality is otherwise comparable.

Importance: LOW

?
Field of view
What it is: The field-of-view angle shows how wide the camera can capture in one frame.
When it matters: When you want a wider or tighter look from the camera.

Importance: MEDIUM

?
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Built-in display
What it is: Whether the action camera has its own built-in screen for framing, playback, or settings.
When it matters: When you want to frame shots, review clips, or change settings directly on the camera.

Importance: LOW

?
Screen size
What it is: The physical diagonal measurement of the display area, usually expressed in inches.
When it matters: When you want a bigger on-camera screen for framing, playback, or reading menus more easily.

Importance: MEDIUM

2.33 inch
SJCAM A20 has a 2.33 inch screen, which is larger than the screens on 81.9% of action cameras and the same size as the screens on 4.8% of action cameras.
Touchscreen
What it is: Indicates that the display acts as an input device, recognizing touch gestures.
When it matters: When you interact with your device using intuitive taps and gestures.

Importance: LOW

yes
SJCAM A20 includes a touchscreen. This feature is present on 62.2% of action cameras.
Secondary screen
What it is: Indicates whether the camera includes an additional display separate from the main screen.
When it matters: When you vlog, frame yourself often, or need status info visible without rotating the camera.

Importance: LOW

no
SJCAM A20 does not have a secondary screen. 14.3% of action cameras have a secondary screen.
Secondary screen resolution
What it is: States the pixel resolution of the additional display used for status information or framing.
When it matters: When you depend on the front or extra display for framing and want a clearer preview.

Importance: LOW

N/A
Show more
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: LOW

yes
SJCAM A20 supports Wi-Fi connectivity. This feature is present on 92.5% of action cameras.
Wi-Fi version
What it is: The specific generation of Wi-Fi standards supported (e.g., Wi-Fi 6, Wi-Fi 7), determining maximum speed and efficiency.
When it matters: When you have a high-speed router and want faster downloads with less congestion.

Importance: LOW

?
Bluetooth version
What it is: The Bluetooth version the action camera supports for wireless accessories and companion-device pairing.
When it matters: When you want to pair the camera with wireless accessories or a companion device reliably.

Importance: LOW

N/A
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: LOW

no
SJCAM A20 does not support GPS. 13.9% of action cameras include GPS functionality.
USB Type-C
What it is: A modern, reversible connector used for charging, data transfer, and sometimes audio or video output.
When it matters: When you want a reversible cable that handles charging, data, and accessories universally.

Importance: LOW

yes
SJCAM A20 features USB Type-C. This feature is present on 41.8% of action cameras.
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Battery life
What it is: The typical endurance the watch can deliver on a full charge under the stated usage pattern.
When it matters: When you do not want to charge the watch too often.

Importance: HIGH

360 min
SJCAM A20 runs for 360 min per charge, which is longer than the battery life of 98.8% of action cameras.
Battery power
What it is: The battery capacity, usually measured in milliampere-hours (mAh).
When it matters: When you do not want to charge the watch too often.

Importance: MEDIUM

2,650 mAh
SJCAM A20 has a battery capacity of 2650 mAh, which is higher than that of 98.1% of action cameras and equal to that of 0.6% of action cameras.
Charging time
What it is: The time the battery needs to recharge fully under supported conditions.
When it matters: When you want shorter breaks between charges.

Importance: MEDIUM

5 h
SJCAM A20 charges in 5 h, which is longer than the charging time of 98.7% of action cameras and equal to the charging time of 1.3% of action cameras.
Fast charging
What it is: Whether the camera supports faster-than-standard charging to reduce downtime between shoots.
When it matters: When you need to recharge quickly between shooting sessions, travel stops, or battery swaps.

Importance: LOW

no
SJCAM A20 does not support fast charging. 19.4% of action cameras support fast charging.
Wireless charging
What it is: Whether the camera itself can charge wirelessly on a compatible charging surface or dock.
When it matters: When you want to top up the camera without plugging in a cable every time.

Importance: LOW

no
SJCAM A20 does not support wireless charging. 0.6% of action cameras support wireless charging.
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Waterproof depth
What it is: The maximum depth of water the device is certified to withstand for a specific duration.
When it matters: When you film while swimming, snorkeling, or in heavy water exposure and need to know the camera's native underwater limit.

Importance: HIGH

0 m
SJCAM A20 is not rated for underwater use. 51.2% of cameras have a native waterproof depth rating.
IP rating
What it is: A standardized protection code that shows how well the action camera resists dust and water ingress.
When it matters: When you shoot in rain, snow, dust, or around water and want to know how well the camera is sealed.

Importance: MEDIUM

IP65
SJCAM A20 has an IP rating of IP65, which is higher than that of 62.9% of action cameras and equal to that of 1.4% of action cameras.
Maximum operating temperature
What it is: The highest ambient temperature at which the watch is rated to operate normally.
When it matters: When you use the watch in heat, cold, or at high altitude.

Importance: LOW

?
Minimum operating temperature
What it is: The lowest ambient temperature at which the watch is rated to operate normally.
When it matters: When you use the watch in heat, cold, or at high altitude.

Importance: LOW

?
External memory slot
What it is: A slot for expandable storage such as a memory card, if the watch provides one.
When it matters: When you want more room for apps, music, or offline data.

Importance: LOW

yes
SJCAM A20 includes an external memory slot. This feature is present on 95.2% of action cameras.
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SJCAM A20 vs the average action camera

  • 270 min longer battery life
    SJCAM A20 has longer battery life than the average action camera (360 min vs 90 min). The average action camera offers 90 min of battery life.
    What it is: The typical endurance the watch can deliver on a full charge under the stated usage pattern.
    When it matters: When you do not want to charge the watch too often.

    Importance: HIGH

    SJCAM A20 has longer battery life than the average action camera (360 min vs 90 min). The average action camera offers 90 min of battery life.360 min vs 90 min
  • Better IP rating
    SJCAM A20 has a higher IP rating than the average action camera (IP65 vs IPX4). The average action camera has an IP rating of IPX4.
    What it is: A standardized protection code that shows how well the action camera resists dust and water ingress.
    When it matters: When you shoot in rain, snow, dust, or around water and want to know how well the camera is sealed.

    Importance: MEDIUM

    SJCAM A20 has a higher IP rating than the average action camera (IP65 vs IPX4). The average action camera has an IP rating of IPX4.IP65 vs IPX4
  • 1450 mAh more battery capacity
    SJCAM A20 has a higher battery capacity than the average action camera (2650 mAh vs 1200 mAh). The average action camera has a battery capacity of 1200 mAh.
    What it is: The battery capacity, usually measured in milliampere-hours (mAh).
    When it matters: When you do not want to charge the watch too often.

    Importance: MEDIUM

    SJCAM A20 has a higher battery capacity than the average action camera (2650 mAh vs 1200 mAh). The average action camera has a battery capacity of 1200 mAh.2650 mAh vs 1200 mAh
  • 16.5% larger screen size
    SJCAM A20 has a higher screen size than the average action camera (2.3 inch vs 2 inch). The average action camera has a screen size of 2 inch.
    What it is: The physical diagonal measurement of the display area, usually expressed in inches.
    When it matters: When you want a bigger on-camera screen for framing, playback, or reading menus more easily.

    Importance: MEDIUM

    SJCAM A20 has a higher screen size than the average action camera (2.3 inch vs 2 inch). The average action camera has a screen size of 2 inch.2.33 inch vs 2 inch
  • Has USB Type-C
    SJCAM A20 has a USB Type-C port, the average action camera does not. 42.2% of action cameras use USB-C ports.
    What it is: A modern, reversible connector used for charging, data transfer, and sometimes audio or video output.
    When it matters: When you want a reversible cable that handles charging, data, and accessories universally.

    Importance: LOW

    SJCAM A20 has a USB Type-C port, the average action camera does not. 42.2% of action cameras use USB-C ports.
  • Damage-resistant glass
    SJCAM A20 uses damage-resistant glass, the average action camera does not. 43.2% of action cameras use damage-resistant glass.
    What it is: Indicates whether the outer glass is designed to better resist scratches, impacts, or everyday wear.
    When it matters: When the camera will be exposed to debris, accidental knocks, or rough travel conditions.

    Importance: LOW

    SJCAM A20 uses damage-resistant glass, the average action camera does not. 43.2% of action cameras use damage-resistant glass.
  • 2 newer release date
    SJCAM A20 is newer than the average action camera (2020 vs 2018). The average action camera was released in 2018.
    What it is: The month and year when the action camera model was officially released or first became available.
    When it matters: When you want to know whether the camera is relatively current or from an older generation.

    Importance: LOW

    SJCAM A20 is newer than the average action camera (2020 vs 2018). The average action camera was released in 2018.2020 vs 2018
  • 16.5% larger screen size
    SJCAM A20 has a higher screen size than the average action camera (2.3 inch vs 2 inch). The average action camera has a screen size of 2 inch.
  • 2 newer release date
    SJCAM A20 is newer than the average action camera (2020 vs 2018). The average action camera was released in 2018.
  • Has USB Type-C
    SJCAM A20 has a USB Type-C port, the average action camera does not. 42.2% of action cameras use USB-C ports.
  • 270 min longer battery life
    SJCAM A20 has longer battery life than the average action camera (360 min vs 90 min). The average action camera offers 90 min of battery life.
  • 1450 mAh more battery capacity
    SJCAM A20 has a higher battery capacity than the average action camera (2650 mAh vs 1200 mAh). The average action camera has a battery capacity of 1200 mAh.
  • Better IP rating
    SJCAM A20 has a higher IP rating than the average action camera (IP65 vs IPX4). The average action camera has an IP rating of IPX4.
  • Damage-resistant glass
    SJCAM A20 uses damage-resistant glass, the average action camera does not. 43.2% of action cameras use damage-resistant glass.

Total
Display & Design
Connectivity & Audio
Battery
Ruggedness & Storage
  • Lower video resolution
    SJCAM A20 records at 4K, a lower video resolution than the average action camera (5.3K).
  • 6 fps lower 4K frame rate
    SJCAM A20 has a lower 4K frame rate than the average action camera (24 fps vs 30 fps). The average action camera reaches 30 fps at 4K.
  • 4 mm wider
    SJCAM A20 is wider than the average action camera (64 mm vs 60 mm). The average action camera has a width of 60 mm.
  • 3 h longer charging time
    SJCAM A20 has a higher charging time than the average action camera (5 h vs 2 h). The average action camera takes 2 h to charge.
  • 1 m shallower waterproof depth
    SJCAM A20 has a lower waterproof depth rating than the average action camera (0 m vs 1 m). The average action camera has a waterproof depth rating of 1 m.
  • Lower video resolution
    SJCAM A20 records at 4K, a lower video resolution than the average action camera (5.3K).
    What it is: The listed recording format states maximum capture resolution and frame rate.
    When it matters: When video quality matters for your footage.

    Importance: HIGH

    SJCAM A20 records at 4K, a lower video resolution than the average action camera (5.3K).4K vs 5.3K
  • 3 h longer charging time
    SJCAM A20 has a higher charging time than the average action camera (5 h vs 2 h). The average action camera takes 2 h to charge.
    What it is: The time the battery needs to recharge fully under supported conditions.
    When it matters: When you want shorter breaks between charges.

    Importance: MEDIUM

    SJCAM A20 has a higher charging time than the average action camera (5 h vs 2 h). The average action camera takes 2 h to charge.5 h vs 2 h
  • 1 m shallower waterproof depth
    SJCAM A20 has a lower waterproof depth rating than the average action camera (0 m vs 1 m). The average action camera has a waterproof depth rating of 1 m.
    What it is: The maximum depth of water the device is certified to withstand for a specific duration.
    When it matters: When you film while swimming, snorkeling, or in heavy water exposure and need to know the camera's native underwater limit.

    Importance: HIGH

    SJCAM A20 has a lower waterproof depth rating than the average action camera (0 m vs 1 m). The average action camera has a waterproof depth rating of 1 m.0 m vs 1 m
  • 6 fps lower 4K frame rate
    SJCAM A20 has a lower 4K frame rate than the average action camera (24 fps vs 30 fps). The average action camera reaches 30 fps at 4K.
    What it is: Indicates the highest frame rate available when recording at 4K resolution.
    When it matters: When you want detailed footage and still need enough frame rate for action or mild slow motion.

    Importance: HIGH

    SJCAM A20 has a lower 4K frame rate than the average action camera (24 fps vs 30 fps). The average action camera reaches 30 fps at 4K.24 fps vs 30 fps
  • 5.31x less popular
    SJCAM A20 is less popular than the average action camera (1 vs 5.308).
    What it is: An indicator based on the number of reviews received by the action camera.
    When it matters: When you want to see which action cameras attract the most buyer attention and review activity.
    SJCAM A20 is less popular than the average action camera (1 vs 5.308).1 vs 5.31
  • 4 mm wider
    SJCAM A20 is wider than the average action camera (64 mm vs 60 mm). The average action camera has a width of 60 mm.
    What it is: The horizontal dimension of the device when held in portrait orientation.
    When it matters: When you want the camera body to fit better in mounts, pockets, or tight spaces.

    Importance: LOW

    SJCAM A20 is wider than the average action camera (64 mm vs 60 mm). The average action camera has a width of 60 mm.64 mm vs 60 mm
Total
Overall
Video
Display & Design
Battery
Ruggedness & Storage

Graphic comparison of SJCAM A20 and

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Third-party reviews

What customers like about SJCAM A20?

  • Long battery life due to the high-capacity 2650mAh battery.
  • Very cost-effective and budget-friendly choice compared to premium alternatives.
  • Includes helpful dual-stereo microphones with internal noise reduction software.
  • Features built-in infrared LEDs for improved visibility during night recording.
  • Comes with a slim body shape that fits snuggly and securely against the chest.
  • Equipped with functional gyro image stabilization for smoother capture.
  • IP65 waterproof and dustproof rating protects against rain and harsh working environments.

What customers dislike about SJCAM A20?

  • Video dynamic range is poor when capturing high-contrast scenes.
  • Low-light video recordings can sometimes look grainy or muddy despite the night vision.
  • The official smartphone companion app can be unreliable or difficult to pair.
  • Build quality feels mostly plastic and less rugged than premium action cameras.
  • Video resolution options are limited at higher framerates compared to modern sports cameras.

Expert reviews

S
sjcam.com
N.v.t.
Summary of the review
Officiële SJCAM A20 Productpagina & Specificaties (Nederlands)
(Translated)Show original

Video reviews

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