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SJCAM SJ4000 Review | 96 Data compared

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  • Avg. price: ~£60
  • Video resolution: 1080p
  • Battery life: 90 min
  • Waterproof depth: 0 m
  • Electronic image stabilization: no
  • Maximum 4K frame rate: 30 fps

SJCAM SJ4000 review. Compare 96 technical specifications and user reviews to see how it ranks among action cameras and if it is worth buying.

5.3

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%

4.9

Technical Score

20.0%

7.0

User score

Good
4.9

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%

2.8

Video

22.0%

6.7

Photo

14.0%

5.1

Ruggedness & Storage

13.0%

4.1

Battery

11.0%

5.6

Connectivity & Audio

10.0%

6.8

Display & Design

Poor
7.0

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%

7.4

User reviews

30.0%

6.1

Popularity

User score:
United Kingdom
amazon
3.7
(341)
amazon
3.6
(72)
amazon
4.0
(58)
amazon
3.3
(7)
United States
Amazon_logo.png
3.7
(341)
Amazon_logo.png
4.0
(59)
Amazon_logo.png
2.9
(4)

(Reviews last updated: July 2026)

Very good
  • 3.0
    Motorcycle riding

    Score components:

    35.0%

    1.0

    Electronic image stabilization

    30.0%

    5.4

    Video resolution

    20.0%

    4.6

    Battery life

    15.0%

    1.0

    Waterproof depth

  • 1.9
    Skiing

    Score components:

    30.0%

    1.0

    Electronic image stabilization

    25.0%

    1.0

    Horizon leveling

    25.0%

    1.0

    Waterproof depth

    20.0%

    5.5

    Minimum operating temperature

  • 3.1
    Low light

    Score components:

    35.0%

    1.0

    HDR mode

    30.0%

    ?

    Sensor size

    20.0%

    1.0

    Color depth

    15.0%

    1.0

    Electronic image stabilization

  • 5.1
    Long videos

    Score components:

    50.0%

    4.6

    Battery life

    20.0%

    10

    Removable battery

    15.0%

    1.0

    Fast charging

    15.0%

    4.2

    Charging time

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Best rankings

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

Verdict

The SJCAM SJ4000 is a compact, entry-level action camera featuring a 12MP CMOS sensor capable of recording Full HD 1080p video at 30fps and 720p at 60fps through a 170-degree ultra-wide-angle lens. It includes a built-in 1.5-inch or 2.0-inch LCD screen for real-time framing and is frequently bundled with a waterproof housing rated for depths up to 30 meters, alongside a vast array of mounting accessories compatible with the GoPro ecosystem. Key advantages include its exceptional value-for-money, lightweight 58g design, and versatile functionality as a dash cam or webcam. However, it suffers from a lack of true image stabilization, poor low-light performance, limited battery life of approximately 70–90 minutes, and a built-in microphone that is largely ineffective when used inside the waterproof case.

Technical Specifications of SJCAM SJ4000

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%

2.8

Video

22.0%

6.7

Photo

14.0%

5.1

Ruggedness & Storage

13.0%

4.1

Battery

11.0%

5.6

Connectivity & Audio

10.0%

6.8

Display & Design

4.9
SJCAM SJ4000 has a technical score of 4.86 points, which is lower than 89.2% 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%

7.4

User reviews

30.0%

6.1

Popularity

User score:
United Kingdom
amazon
3.7
(341)
amazon
3.6
(72)
amazon
4.0
(58)
amazon
3.3
(7)
United States
Amazon_logo.png
3.7
(341)
Amazon_logo.png
4.0
(59)
Amazon_logo.png
2.9
(4)

(Reviews last updated: July 2026)

7.0
SJCAM SJ4000 has a user score of 7.03 points, which is lower than 70.5% of action cameras.
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.
6.1
SJCAM SJ4000 has a popularity of 6.1 points, which is higher than 56% 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%

5.3

Overall score

40.0%

10

Price

6.7
SJCAM SJ4000 has a quality-to-price ratio of 6.7 points, which is lower than 74.7% 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

1080p
SJCAM SJ4000 records video at 1080p, which is lower than that of 69.9% 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

30 fps
SJCAM SJ4000 has a maximum 4K frame rate of 30 fps, which is higher than that of 37.2% of action cameras and equal to that of 26.4% 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

30 fps
SJCAM SJ4000 has a maximum 1080p frame rate of 30 fps, which is lower than that of 77.1% of action cameras and equal to that of 21.6% 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

15 Mbps
SJCAM SJ4000 has a video bitrate of 15 Mbps, which is lower than that of 92.9% of action cameras and equal to that of 3.2% of action cameras.
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 SJ4000 supports the following video codecs: H.264. Its codec support is more advanced than that of 2.4% of action cameras.
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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 SJ4000 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

12 MP
SJCAM SJ4000 captures photos at 12 MP, which is higher than 24.3% of action cameras and equal to 35% of action cameras.
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

170 °
SJCAM SJ4000 has a field of view of 170 °, which is wider than that of 51.7% of action cameras.
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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 inch
SJCAM SJ4000 has a 2 inch screen, which is larger than the screens on 27.6% of action cameras and the same size as the screens on 42.9% 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

no
SJCAM SJ4000 does not include a touchscreen. 63.1% of action cameras support touchscreen input.
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

?
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

?
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

?
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

802.11b/g/n
SJCAM SJ4000 supports 802.11b/g/n, which is newer than the standard supported by 5.5% of action cameras and equal to the standard supported by 45.2% of action cameras.
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 SJ4000 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

no
SJCAM SJ4000 does not include USB Type-C. 42.4% of action cameras use USB-C.
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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

90 min
SJCAM SJ4000 runs for 90 min per charge, which is longer than the battery life of 33.5% of action cameras and equal to the battery life of 19.5% 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

900 mAh
SJCAM SJ4000 has a battery capacity of 900 mAh, which is lower than that of 80.3% of action cameras and equal to that of 3.2% 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

3 h
SJCAM SJ4000 charges in 3 h, which is longer than the charging time of 75% of action cameras and equal to the charging time of 13.8% 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 SJ4000 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 SJ4000 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 SJ4000 is waterproof to 0 m, which is shallower than the waterproof depth of 51.2% of action cameras and equal to the waterproof depth of 48.8% of action cameras.
30 with housing/case.
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

IP68
SJCAM SJ4000 has an IP rating of IP68, which is higher than that of 71.4% of action cameras and equal to that of 28.6% 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

45 °C
SJCAM SJ4000 has a maximum operating temperature of 45 °C, which is higher than that of 74.5% of action cameras and equal to that of 19.7% of action cameras.
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

-10 °C
SJCAM SJ4000 has a minimum operating temperature of -10 °C, which is lower than that of 32.4% of action cameras and equal to that of 44.4% of action cameras.
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 SJ4000 includes an external memory slot. This feature is present on 95.2% of action cameras.
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SJCAM SJ4000 vs the average action camera

  • Better IP rating
    SJCAM SJ4000 has a higher IP rating than the average action camera (IP68 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 SJ4000 has a higher IP rating than the average action camera (IP68 vs IPX4). The average action camera has an IP rating of IPX4.IP68 vs IPX4
  • 49.1% lighter
    SJCAM SJ4000 is lighter than the average action camera (58 g vs 114 g). The average action camera weighs 114 g.
    What it is: The total weight of the action camera body as carried or mounted in normal use.
    When it matters: When you mount the camera on a helmet, chest rig, bike, or selfie stick and want to keep the setup light.

    Importance: LOW

    SJCAM SJ4000 is lighter than the average action camera (58 g vs 114 g). The average action camera weighs 114 g.58 g vs 114 g
  • 5 °C higher max operating temp
    SJCAM SJ4000 has a higher maximum operating temperature than the average action camera (45 °C vs 40 °C). The average action camera reaches a maximum operating temperature of 40 °C.
    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

    SJCAM SJ4000 has a higher maximum operating temperature than the average action camera (45 °C vs 40 °C). The average action camera reaches a maximum operating temperature of 40 °C.45 °C vs 40 °C
  • Has HDMI output
    SJCAM SJ4000 supports HDMI output, the average action camera does not. 43.4% of action cameras support video-out features.
    Built-in Mini HDMI port.
    What it is: Whether the camera can output video to an external monitor or recorder over HDMI.
    When it matters: When you want live monitoring, external capture, or a direct feed to another display.

    Importance: LOW

    SJCAM SJ4000 supports HDMI output, the average action camera does not. 43.4% of action cameras support video-out features.
  • Dedicated bike mount
    SJCAM SJ4000 includes a dedicated bike mount, the average action camera does not. 22.8% of action cameras include a dedicated bike mount.
    What it is: Shows whether a mounting solution made specifically for bicycle use is supported or included.
    When it matters: When you want a more secure and purpose-built setup for cycling footage.

    Importance: LOW

    SJCAM SJ4000 includes a dedicated bike mount, the average action camera does not. 22.8% of action cameras include a dedicated bike mount.
  • 4 ° wider field of view
    SJCAM SJ4000 has a higher field of view than the average action camera (170 ° vs 166 °). The average action camera offers a field of view of 166 °.
    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

    SJCAM SJ4000 has a higher field of view than the average action camera (170 ° vs 166 °). The average action camera offers a field of view of 166 °.170 ° vs 166 °
  • 4.17x cheaper
    SJCAM SJ4000 is cheaper than the average action camera (£60 vs £250).
    SJCAM SJ4000 is cheaper than the average action camera (£60 vs £250).£60 vs £250
  • 3.9 mm shorter
    SJCAM SJ4000 is shorter than the average action camera (41.1 mm vs 45 mm). The average action camera has a height of 45 mm.
    What it is: The vertical size of the action camera body.
    When it matters: When you want the camera body to fit better in mounts, cases, or compact carry setups.

    Importance: LOW

    SJCAM SJ4000 is shorter than the average action camera (41.1 mm vs 45 mm). The average action camera has a height of 45 mm.41.1 mm vs 45 mm
  • 4 ° wider field of view
    SJCAM SJ4000 has a higher field of view than the average action camera (170 ° vs 166 °). The average action camera offers a field of view of 166 °.
  • 49.1% lighter
    SJCAM SJ4000 is lighter than the average action camera (58 g vs 114 g). The average action camera weighs 114 g.
  • 3.9 mm shorter
    SJCAM SJ4000 is shorter than the average action camera (41.1 mm vs 45 mm). The average action camera has a height of 45 mm.
  • Has HDMI output
    SJCAM SJ4000 supports HDMI output, the average action camera does not. 43.4% of action cameras support video-out features.
  • Better IP rating
    SJCAM SJ4000 has a higher IP rating than the average action camera (IP68 vs IPX4). The average action camera has an IP rating of IPX4.
  • 5 °C higher max operating temp
    SJCAM SJ4000 has a higher maximum operating temperature than the average action camera (45 °C vs 40 °C). The average action camera reaches a maximum operating temperature of 40 °C.
  • Dedicated bike mount
    SJCAM SJ4000 includes a dedicated bike mount, the average action camera does not. 22.8% of action cameras include a dedicated bike mount.

Total
Overall
Photo
Display & Design
Connectivity & Audio
Ruggedness & Storage
  • Lower video resolution
    SJCAM SJ4000 records at 1,080p, a lower video resolution than the average action camera (5.3K).
  • No electronic stabilization
    SJCAM SJ4000 does not support electronic stabilization, the average action camera does. 64.7% of action cameras support electronic image stabilization.
  • 75% lower video bitrate
    SJCAM SJ4000 has a lower video bitrate than the average action camera (15 Mbps vs 60 Mbps). The average action camera has a video bitrate of 60 Mbps.
  • 2 fps lower slow-motion frame rate
    SJCAM SJ4000 has a lower slow-motion frame rate than the average action camera (60 fps vs 120 fps). The average action camera reaches 120 fps for slow motion.
  • 30 fps lower 1080p frame rate
    SJCAM SJ4000 has a lower 1080p frame rate than the average action camera (30 fps vs 60 fps). The average action camera reaches 60 fps at 1080p.
  • No touchscreen
    SJCAM SJ4000 does not have a touchscreen, the average action camera does. 62.5% of action cameras support touchscreen input.
  • 4 older release date
    SJCAM SJ4000 is older than the average action camera (2,014 vs 2,018). The average action camera was released in 2,018.
  • No remote control support
    SJCAM SJ4000 offers weaker remote control support than the average action camera (no vs accessory).
    Only smartphone app control, no dedicated remote.
  • 1 fewer microphones
    SJCAM SJ4000 has fewer microphones than the average action camera (1 vs 2). The average action camera has 2 microphones.
  • 300 mAh less battery capacity
    SJCAM SJ4000 has a lower battery capacity than the average action camera (900 mAh vs 1,200 mAh). The average action camera has a battery capacity of 1,200 mAh.
  • 1 h longer charging time
    SJCAM SJ4000 has a higher charging time than the average action camera (3 h vs 2 h). The average action camera takes 2 h to charge.
  • 1 m shallower waterproof depth
    SJCAM SJ4000 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.
    30 with housing/case.
  • 96 GB smaller microSD limit
    SJCAM SJ4000 has a lower maximum microSD capacity than the average action camera (32 GB vs 128 GB). The average action camera supports microSD cards up to 128 GB.
    128 GB on newer variants.
  • Lower video resolution
    SJCAM SJ4000 records at 1,080p, 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 SJ4000 records at 1,080p, a lower video resolution than the average action camera (5.3K).1080p vs 5.3K
  • No electronic stabilization
    SJCAM SJ4000 does not support electronic stabilization, the average action camera does. 64.7% of action cameras support electronic image stabilization.
    What it is: Shows whether the camera uses digital motion correction to make handheld video look steadier.
    When it matters: When you shoot handheld, mounted, or in motion and want smoother footage without external gear.

    Importance: HIGH

    SJCAM SJ4000 does not support electronic stabilization, the average action camera does. 64.7% of action cameras support electronic image stabilization.
  • 75% lower video bitrate
    SJCAM SJ4000 has a lower video bitrate than the average action camera (15 Mbps vs 60 Mbps). The average action camera has a video bitrate of 60 Mbps.
    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

    SJCAM SJ4000 has a lower video bitrate than the average action camera (15 Mbps vs 60 Mbps). The average action camera has a video bitrate of 60 Mbps.15 Mbps vs 60 Mbps
  • No touchscreen
    SJCAM SJ4000 does not have a touchscreen, the average action camera does. 62.5% of action cameras support touchscreen input.
    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

    SJCAM SJ4000 does not have a touchscreen, the average action camera does. 62.5% of action cameras support touchscreen input.
  • 300 mAh less battery capacity
    SJCAM SJ4000 has a lower battery capacity than the average action camera (900 mAh vs 1,200 mAh). The average action camera has a battery capacity of 1,200 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 SJ4000 has a lower battery capacity than the average action camera (900 mAh vs 1,200 mAh). The average action camera has a battery capacity of 1,200 mAh.900 mAh vs 1200 mAh
  • 1 h longer charging time
    SJCAM SJ4000 has a higher charging time than the average action camera (3 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 SJ4000 has a higher charging time than the average action camera (3 h vs 2 h). The average action camera takes 2 h to charge.3 h vs 2 h
  • 1 m shallower waterproof depth
    SJCAM SJ4000 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.
    30 with housing/case.
    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 SJ4000 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
  • 2 fps lower slow-motion frame rate
    SJCAM SJ4000 has a lower slow-motion frame rate than the average action camera (60 fps vs 120 fps). The average action camera reaches 120 fps for slow motion.
    What it is: The highest native frame rate the camera can record for slow-motion playback.
    When it matters: When you want smoother slow motion and more detail in fast action; a higher native frame rate allows slower playback.

    Importance: MEDIUM

    SJCAM SJ4000 has a lower slow-motion frame rate than the average action camera (60 fps vs 120 fps). The average action camera reaches 120 fps for slow motion.60 fps vs 120 fps
Total
Overall
Video
Display & Design
Connectivity & Audio
Battery
Ruggedness & Storage

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2.9
4 Reviews

(Reviews last updated: July 2026)

What customers like about SJCAM SJ4000?

  • Excellent value for money compared to premium brands
  • Good daytime video and clear picture quality for the price
  • Comes with a massive selection of accessories and mounts
  • The 30-meter waterproof housing functions reliably
  • Intuitive menu navigation and simple user controls
  • Compact and lightweight form factor makes it highly portable
  • Features a built-in rear LCD screen for framing and playback

What customers dislike about SJCAM SJ4000?

  • Poor low-light and night-time performance
  • Short battery life, often requiring extra backup batteries
  • Low-quality built-in microphone resulting in muffled audio
  • Unstable Wi-Fi connection and occasional smartphone app issues
  • Still photos suffer from upscaling, blurriness, and lack detail when zoomed
  • Long-term physical durability concerns and button failures over time
  • Instruction manual is vague and unhelpful

Expert reviews

T
the-gadgeteer.com
27/10/2014
SJCAM SJ4000 Action Camera review - The Gadgeteer

However, the camera suffers from several design and usability drawbacks. Users will encounter notable hardware frustrations, such as a poorly positioned battery door slide-lock that makes swapping the 900 mAh battery very difficult without a tool like a small screwdriver. The camera lacks dedicated skip buttons, volume controls, or direct onboard delete options for media playback,...Read more

W
webbikeworld.com
10/10/2016
SJCAM SJ4000 Review - webBikeWorld

Despite its high-value proposition, the camera exhibits notable technical limitations. Its video frame rates suffer from interpolation, meaning the 720p at 60fps and 480p at 60fps options are not actual 60fps recordings and result in degraded video quality compared to the 1080p setting. The camera's default exposure settings tend to overexpose scenes by roughly one full stop,...Read more

P
pevly.com
14/07/2014
SJCAM SJ4000 WiFi Action Camera Review - Pevly

The SJCAM SJ4000 WiFi is a popular, budget-friendly action camera that mimics the GoPro design and offers a high-value, feature-rich experience for under $100. It stands out as a multipurpose device, capable of functioning not only as an underwater action cam but also as a high-definition wide-angle PC webcam and a vehicle dash-camera with a dedicated "Car Mode". Key advantages...Read more

B
bushcraftuk.com
23/04/2015
SJ4000 WiFi Action Camera Review (and Discount) - Bushcraft UK

The SJ4000 WiFi action camera is highlighted on BushcraftUK as a versatile, budget-friendly alternative featuring integrated Wi-Fi for smartphone control and a built-in rear LCD screen for easy composition. The package offers high value by including a robust waterproof housing and a generous selection of durable mounting brackets suitable for outdoor activities. Limitations...Read more

P
productreview.com.au
Various Dates
SJCAM SJ4000 reviews | ProductReview.com.au

The SJCAM SJ4000 is a highly budget-friendly action camera that users heavily compare to the GoPro Hero 3 due to its similar size and layout. Reviewers love that it costs a fraction of the price of a GoPro—often around $75 to $100—meaning you can buy multiple units for the cost of one premium camera. A major highlight is the built-in color LCD screen on the back, which makes aiming...Read more

H
helifreak.com
06/09/2016
SJ4000 action cam review - HeliFreak

Based on the HeliFreak forum review, the SJ4000 action camera is highlighted as a well-built, budget-friendly option (priced around $62.25 at the time) that comes packaged with a 30-metre watertight case, an open frame carrier, and an abundance of versatile mounting accessories. Users praise its highly intuitive operation and the inclusion of a rear colour LCD screen, which makes...Read more

D
drones.bg
15/10/2025
SJCAM SJ4000 Action Camera Review

The review highlights several prominent advantages and disadvantages of the SJ4000. On the positive side, it delivers enviably good picture and video quality for its low price tier, making it highly competitive with other similar analogues. Users gain access to a broad suite of rich manual settings, such as ISO, exposure, white balance, and automatic screen image rotation. It can...Read more

T
team-bhp.com
17/10/2018
Review: SJCAM SJ4000 WiFi - Dash cam / Action cam Combo

The Team-BHP review highlights the SJCAM SJ4000 WiFi as a versatile, budget-friendly device functioning as both an action camera and a dash cam, offering 1080p recording, built-in WiFi, and an extensive bundle of mounting accessories. Key advantages include its compact form factor, support for 128GB storage, and a dedicated "Car Mode" for automatic recording. Conversely, the review...Read more

C
chip.de
02/11/2014
QUMOX SJ4000 (Action-Cam) Test - CHIP

The QUMOX SJ4000 is an extremely budget-friendly action camera under €100 designed to compete with GoPro models by mimicking their appearance and matching their accessory compatibility. Recording at a maximum resolution of Full HD at 30 frames per second, it offers a satisfactory maximum sharpness of 418 line pairs per picture height alongside low image noise and reliable color...Read more

(Translated)Show original
M
macitynet.it
12/03/2015
Recensione SJ4000Go to product viewer dialog for this item., la GoPro per tutti a 69 euro

The SJ4000 action camera, often marketed under the SJCam or Qumox brand, is a highly affordable consumer-grade alternative to a standard GoPro, retailing for around 69 euros. Measuring 5.8 x 4 x 1.9 centimetres and weighing just 60 grams, it features an integrated rear LCD screen for framing shots, simple physical button controls, and a microUSB charging port. The camera captures...Read more

(Translated)Show original
W
wijtestenhet.nl
03/08/2020
SJCAM SJ4000 WiFi - Actioncam [recensie]

The reviewer chose the SJCAM SJ4000 WiFi action camera primarily to film horse riding, selecting it based on positive forum feedback, budget friendliness, and a requirement for at least one hour of continuous battery life. In practice, the camera meets its promises by delivering roughly 80 minutes of continuous filming in Full HD 1080p, which can be extended even further by...Read more

(Translated)Show original

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