OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Action cameras Methodology v3.0
Action cameras Methodology v3.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Action cameras Methodology v3.0: the technical score from the specifications is the base, and independent expert and video reviews (up to ±0.5 points), owner opinions (up to ±0.3) and best-of lists (up to +0.3) move it up or down.
Explore Action cameras Methodology v3.0

SJCAM C400 review: 92 specs compared

Avg. price:~£150Video resolution:4KBattery life:172 minWaterproof depth:0 mElectronic image stabilization:yesMaximum 4K frame rate:30 fps

SJCAM C400 Review: Compare 92 technical specifications, 20 expert and video reviews and 1 best-of list to see how this product ranks in the Action cameras category and whether it is worth buying.

SJCAM C400
7.3/10

Overall score

Score
7.3/ 10
✕
What it is
Our main score for this model, 1–10. It combines specs, best-of lists, expert reviews and owners.
How we count it
Parts: Technical score 35%, List score 30%, Reviews score 25%, Sentiment score 10%
Marks: Each part gets a mark out of 10. For reviews, lists and owners, a typical model in this category gets about 8 and the best one gets 10.
No data yet: A part with no data shows "?". It counts as the mark of a weaker model in this category (4 in 5 models with data score higher). This way, models with reviews, lists and owners usually come out ahead.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 71% of models
Score components

35%

6.8

Technical score

30%

6.8

List score

25%

8.0

Reviews score

10%

8.4

Sentiment score

▲Better than 71% of action cameras
8.0

Value for money

Value for money
8.0/ 10
✕
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 distribution
▼
<55-66-77-88-99-10
▲ Better than 70% of models
Score components

70%

7.3

Overall score

30%

9.7

Price

▲Better than 70%
6.8

Technical score

Technical score
6.8/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 65% of models
Score components

30%

7.6

Video

22%

6.1

Photo

14%

5.6

Ruggedness & Storage

13%

6.9

Battery

11%

7.4

Connectivity & Audio

10%

7.1

Display & Design

▲Better than 65%
8.0

Reviews score

Reviews score
8.0/ 10
✕
What it is
Average grade from independent test sites, magazines and video reviewers, 1–10.
How we count it
Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Big test sites count more, short reviews half as much as full tests. A video review counts half.
Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.4 for now.
Share: Reviews count 25% of the overall score.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 56% of models

80%

7.9

Average grade

20%

8.2

Popularity

Grades by review (20)
2 reviews: 0 with a printed score, 2 estimated from the review. 18 video reviews, each counting half as much as a written test. Reviews count 25% of the overall score.
User ratings collected online are not part of this score.
▲Better than 56%
6.8

List score

List score
6.8/ 10
✕
What it is
How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
How we count it
Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 30% of the overall score.
Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
Lists with this model (1)
List score: in 1 of 86 lists (1%)
▲Better than 66%
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.

What reviewers say about the SJCAM C400

Based on 2 · 18

Plenty of mounts, a compact body and good battery life win fans, but audio and low-light footage clearly disappoint.
Praised
Mixed views
Criticised
Pick a topic to see who said what

What owners say about the SJCAM C400

Based on 64 owners sharing their experience in online comments

42%positive14%mixed44%negative

Owners praise long battery life and value, but image quality and missing external mic support often disappoint.

What owners dislike

  • Owners say there is no external microphone input, so a separate mic cannot be plugged in directly and the built-in mic is weak.13
  • Owners say footage looks soft, fuzzy and washed out, with weak detail and poor low-light performance.11
  • Owners say the built-in microphone records poor sound, with wind and background noise and no way to add a better mic.6
  • Owners say colors look dull and washed out, with highlights burning out in bright scenes.4
  • Owners say footage is grainy and dark in low light, so they needed an extra light or tripod to get usable night shots.3

Points mentioned by at least 3 owners, most mentioned first.

Loading category ranking...

Technical Specifications of action camera SJCAM C400

Technical score
Technical score
6.8/ 10
✕
What it is
How good the specs are compared with the other models in this category, 1–10.
How we count it
Areas: We rate the specs in each area against the other models in this category.
Weighting: The areas that matter most to buyers count more. The shares are shown under Score components.
Share: The technical score is 35% of the overall score.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 65% of models
Score components:

30%

7.6

Video

22%

6.1

Photo

14%

5.6

Ruggedness & Storage

13%

6.9

Battery

11%

7.4

Connectivity & Audio

10%

7.1

Display & Design

6.8
Reviews score
8.0
List score
6.8
Value for money
Value for money
8.0/ 10
✕
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 distribution
▼
<55-66-77-88-99-10
▲ Better than 70% of models
Score components:

70%

7.3

Overall score

30%

9.7

Price

8.0
Video resolution
4K
This action camera records video at 4K, which is higher than that of 30% of action cameras.
Maximum 4K frame rate
30 fps
Market range: <0 fps – >120 fps
This action camera has a maximum 4K frame rate of 30 fps, which is higher than that of 33% of action cameras and equal to that of 31% of action cameras.
Maximum 1080p frame rate
120 fps
Market range: <30 fps – >240 fps
This action camera has a maximum 1080p frame rate of 120 fps, which is higher than that of 56.7% of action cameras and equal to that of 24.1% of action cameras.
Video bitrate
?
Video codecs
H.264
This action camera supports the following video codecs: H.264. Its codec support is more advanced than that of 2.6% of action cameras.
Show more
What reviewers say
Photo resolution
16 MP
Market range: <8 MP – >48 MP
This action camera has a main camera resolution of 16 MP, which is higher than that of 52% of action cameras and equal to that of 6.8% of action cameras.
Sensor size
1/2.8"
This action camera has a sensor size of 1/2.8", which is smaller than that of 86.4% of action cameras.
Main camera aperture
f/2 f
This action camera has a main camera aperture of f/2, which is wider than that of 68.5% of action cameras and equal to that of 23.1% of action cameras.
Field of view
154 °
Market range: <128 ° – >360 °
This action camera captures a 154 ° field of view, which is narrower than 68.5% of Action cameras and equal to 2.5% of Action cameras.
Adjustable field of view
?
Show more
What reviewers say
Built-in display
yes
This action camera has a built-in display. 21.9% of Action cameras offer this.
Screen size
1.3 inch
Market range: <0 inch – >2.5 inch
This action camera has a 1.3 inch screen, which is smaller than the screens on 79.9% of action cameras and the same size as the screens on 4.9% of action cameras.
Touchscreen
yes
This action camera includes a touchscreen. This feature is present on 64.6% of action cameras.
Secondary screen
yes
This action camera has a secondary screen. This feature is present on 25.6% of action cameras.
Flip-out screen
?
Show more
What reviewers say
Wi-Fi connectivity
yes
This action camera supports Wi-Fi connectivity. This feature is present on 93.4% of action cameras.
Bluetooth version
?
GPS
?
USB Type-C
yes
This action camera features USB Type-C. This feature is present on 47% of action cameras.
USB version
?
Show more
What reviewers say
Battery life
172 min
Market range: <60 min – >162 min
This action camera runs for 172 min per charge, which is longer than the battery life of 88.6% of action cameras.
Battery power
1,250 mAh
Market range: <700 mAh – >1.9k mAh
This action camera has a battery capacity of 1,250 mAh, which is higher than that of 59.5% of action cameras and equal to that of 1% of action cameras.
Charging time
2.75 h
Market range: <0.95 h – >3.5 h
This action camera charges in 2.75 h, which is longer than the charging time of 71.4% of action cameras.
Fast charging
?
Wireless charging
no
This action camera does not support wireless charging. 0.5% of action cameras support wireless charging.
Show more
What reviewers say
Waterproof depth
Not waterproof m
This action camera is not rated for underwater use. 47.9% of cameras have a native waterproof depth rating.
IP rating
?
Maximum operating temperature
?
Minimum operating temperature
?
External memory slot
yes
This action camera includes an external memory slot. This feature is present on 95.8% of action cameras.
Show more
What reviewers say

SJCAM C400 vs the average action camera

246810TotalVideoPhotoDisplay & DesignConnectivity & AudioBatteryRuggedness & Storage
  • Horizon leveling
    This action camera supports horizon leveling, the average action camera does not. 23.7% of action cameras support horizon leveling.
  • 77 min longer battery life
    This action camera has longer battery life than the average action camera (172 min vs 95 min). The average action camera offers 95 min of battery life.
    172 min vs 95 min
  • Secondary screen
    This action camera has a secondary screen, the average action camera does not. 26.1% of action cameras have a secondary screen.
  • 0.5 f wider main aperture
    This action camera has a lower main camera aperture than the average action camera (2 f vs 2.5 f). The average action camera main camera aperture is 2.5 f.
    2.0 f vs 2.5 f
  • Built-in live streaming
    This action camera supports built-in live streaming, the average action camera does not. 33.1% of action cameras support built-in live streaming.
  • Has USB Type-C
    This action camera has a USB Type-C port, the average action camera does not. 47.2% of action cameras use USB-C ports.
  • Included remote control
    This action camera offers better remote control support than the average action camera (included vs accessory).
    included vs accessory
  • Supports RAW photo capture
    This action camera supports RAW photo capture, the average action camera does not. 38.8% of action cameras support RAW formats.
  • 12.7% higher review score
    Reviews score
    8.0/ 10
    ✕
    What it is
    Average grade from independent test sites, magazines and video reviewers, 1–10.
    How we count it
    Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Big test sites count more, short reviews half as much as full tests. A video review counts half.
    Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
    Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.4 for now.
    Share: Reviews count 25% of the overall score.
    Score distribution
    ▼
    <55-66-77-88-99-10
    ▲ Better than 56% of models

    80%

    7.9

    Average grade

    20%

    8.2

    Popularity

    Grades by review (20)
    2 reviews: 0 with a printed score, 2 estimated from the review. 18 video reviews, each counting half as much as a written test. Reviews count 25% of the overall score.
    User ratings collected online are not part of this score.
    8.0 vs 7.1
  • 13.5% higher sentiment score
    8.4 vs 7.4
  • Horizon leveling
    This action camera supports horizon leveling, the average action camera does not. 23.7% of action cameras support horizon leveling.
  • Built-in live streaming
    This action camera supports built-in live streaming, the average action camera does not. 33.1% of action cameras support built-in live streaming.
  • 60 fps higher 1080p frame rate
    This action camera has a higher 1080p frame rate than the average action camera (120 fps vs 60 fps). The average action camera reaches 60 fps at 1080p.
    120 fps vs 60 fps
  • 45 ° wider horizon lock angle
    This action camera has a higher horizon lock angle than the average action camera (45 ° vs 0 °). The average action camera supports a horizon lock angle of 0 °.
    45 ° vs 0 °
  • 0.5 f wider main aperture
    This action camera has a lower main camera aperture than the average action camera (2 f vs 2.5 f). The average action camera main camera aperture is 2.5 f.
    2.0 f vs 2.5 f
  • Supports RAW photo capture
    This action camera supports RAW photo capture, the average action camera does not. 38.8% of action cameras support RAW formats.
  • 1.5 MP higher main-camera resolution
    This action camera has a higher main action camera resolution than the average action camera (16 MP vs 14.5 MP). The average action camera has a resolution of 14.5 MP.
    16 MP vs 14.5 MP
  • Secondary screen
    This action camera has a secondary screen, the average action camera does not. 26.1% of action cameras have a secondary screen.
  • 13 mm shorter
    This action camera is shorter than the average action camera (32 mm vs 45 mm). The average action camera has a height of 45 mm.
    32 mm vs 45 mm
  • 4.3 mm thinner
    This action camera is thinner than the average action camera (25.5 mm vs 29.8 mm). The average action camera has a thickness of 29.8 mm.
    25.5 mm vs 29.8 mm
  • Has USB Type-C
    This action camera has a USB Type-C port, the average action camera does not. 47.2% of action cameras use USB-C ports.
  • Included remote control
    This action camera offers better remote control support than the average action camera (included vs accessory).
    included vs accessory
  • 77 min longer battery life
    This action camera has longer battery life than the average action camera (172 min vs 95 min). The average action camera offers 95 min of battery life.
    172 min vs 95 min
  • 50 mAh more battery capacity
    This action camera has a higher battery capacity than the average action camera (1,250 mAh vs 1,200 mAh). The average action camera has a battery capacity of 1,200 mAh.
    1,250 mAh vs 1,200 mAh
  • 384 GB larger microSD limit
    This action camera has a higher maximum microSD capacity than the average action camera (512 GB vs 128 GB). The average action camera supports microSD cards up to 128 GB.
    512 GB vs 128 GB
  • Dedicated bike mount
    This action camera includes a dedicated bike mount, the average action camera does not. 27.5% of action cameras include a dedicated bike mount.
  • Lower sensor size
    This action camera has sensor size of 1/2.8", lower than the average action camera (1/2.3").
    1/2.8" vs 1/2.3"
  • 3,200 ISO lower max ISO
    This action camera has a lower maximum ISO than the average action camera (3,200 ISO vs 6,400 ISO). The average action camera reaches a maximum ISO of 6,400 ISO.
    3,200 ISO vs 6,400 ISO
  • 92.9% heavier
    This action camera is heavier than the average action camera (189 g vs 98 g). The average action camera weighs 98 g.
    189 g vs 98 g
  • 16 ° narrower field of view
    This action camera has a narrower field of view than the average action camera (154 ° vs 170 °). The average Action camera has a field of view of 170 °.
    154 ° vs 170 °
  • 35% smaller screen size
    This action camera has a lower screen size than the average action camera (1.3 inch vs 2 inch). The average action camera has a screen size of 2 inch.
    1.3 inch vs 2 inch
  • No removable battery
    This action camera does not have a removable battery, while the average action camera does.
  • 10.5% lower list score
    List score
    6.8/ 10
    ✕
    What it is
    How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
    How we count it
    Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 30% of the overall score.
    Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
    Lists with this model (1)
    List score: in 1 of 86 lists (1%)
    6.8 vs 7.6
  • 0.75 h longer charging time
    This action camera has a higher charging time than the average action camera (2.8 h vs 2 h). The average action camera takes 2 h to charge.
    2.75 h vs 2 h
  • 10.5% lower list score
    List score
    6.8/ 10
    ✕
    What it is
    How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
    How we count it
    Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 30% of the overall score.
    Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
    Lists with this model (1)
    List score: in 1 of 86 lists (1%)
    6.8 vs 7.6
  • Lower sensor size
    This action camera has sensor size of 1/2.8", lower than the average action camera (1/2.3").
    1/2.8" vs 1/2.3"
  • 3,200 ISO lower max ISO
    This action camera has a lower maximum ISO than the average action camera (3,200 ISO vs 6,400 ISO). The average action camera reaches a maximum ISO of 6,400 ISO.
    3,200 ISO vs 6,400 ISO
  • 16 ° narrower field of view
    This action camera has a narrower field of view than the average action camera (154 ° vs 170 °). The average Action camera has a field of view of 170 °.
    154 ° vs 170 °
  • 92.9% heavier
    This action camera is heavier than the average action camera (189 g vs 98 g). The average action camera weighs 98 g.
    189 g vs 98 g
  • 35% smaller screen size
    This action camera has a lower screen size than the average action camera (1.3 inch vs 2 inch). The average action camera has a screen size of 2 inch.
    1.3 inch vs 2 inch
  • 9 mm wider
    This action camera is wider than the average action camera (68 mm vs 59 mm). The average action camera has a width of 59 mm.
    68 mm vs 59 mm
  • 1 fewer microphones
    This action camera has fewer microphones than the average action camera (1 vs 2). The average action camera has 2 microphones.
    1 vs 2
  • No removable battery
    This action camera does not have a removable battery, while the average action camera does.
  • 0.75 h longer charging time
    This action camera has a higher charging time than the average action camera (2.8 h vs 2 h). The average action camera takes 2 h to charge.
    2.75 h vs 2 h

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

9.0
Yuxuan Vlogs
≈ estimated
10/08/2026
Hands-on review · app setup and feature walkthrough
Verdict
SJCAM C400 is affordable and good quality, recommended for buyers wanting a compact action camera.
7.0
Daddis House
≈ estimated
02/08/2026
Hands-on review · budget use, recording limits and missing features
Verdict
SJCAM C400 is fine for beginners on a budget, but experienced creators should look at more capable cameras.
9.0
Erin Lawrence
≈ estimated
05/06/2026
Hands-on review · travel and low-light tests
Verdict
SJCAM C400 is recommended for portable shooting, if you accept weak night footage and wind noise in the audio.
8.0
Chigz Tech Reviews
≈ estimated
17/04/2026
Hands-on review · modes, app, battery and value for money
Verdict
SJCAM C400 is a solid budget package for beginners, though low-light footage and audio are weak points.
4.0
WORTH IT OR NOT?
≈ estimated
21/03/2026
Hands-on review · boot time, image quality and value
Verdict
SJCAM C400 is not recommended: its 4K looks upscaled, stabilisation is weak, and the price is too high.
8.0
Exploring Random Stuff
≈ estimated
15/03/2026
Hands-on review · vlogging, stabilization and low-light tests
Verdict
SJCAM C400 is a good beginner pocket camera for vlogging, though low-light performance is weak.
8.0
Jay Summet
≈ estimated
07/03/2026
Hands-on review · action use and audio tests
Verdict
SJCAM C400 is a pretty good deal for an action camera, though its audio and touchscreen let it down.
8.0
Cuddie Slick
≈ estimated
14/02/2026
Hands-on review · water, night and walking tests
Verdict
SJCAM C400 has good picture quality and a handy vlogging kit, but weak night video and short wireless range.
4.0
Ifti's Tech Corner!
≈ estimated
14/02/2026
Hands-on review · image quality and audio tests
Verdict
SJCAM C400 has a fun modular design, but its video quality is well below what you'd expect.
9.0
Ray Knows Tech
≈ estimated
04/01/2026
Hands-on review · battery test and everyday use
Verdict
SJCAM C400 suits vloggers and adventurers who need long battery life, but expect limits on electronic stabilization.
9.5
TechMagnet
≈ estimated
20/12/2025
Hands-on review · body cam, stabilization and low light tests
Verdict
SJCAM C400 offers top-tier value and does its job well as a compact camera for solo vlogging.
9.0
Tim Rundle-Spiers 💥
≈ estimated
20/12/2025
Hands-on road test · bike mount, dash cam and settings
Verdict
SJCAM C400 has strong colour and dynamic range and is a well-built vlog and action camera that impressed in real use.
More graded video reviews (2)
creator’s own scoreestimated by us

Expert reviews

In-depth analysis and verdict from leading tech publications

7.0
gizmochina.com
≈ estimated
23/08/2026
Hands-on test · Modular 3-in-1
Verdict
The SJCAM C400 works as a pocket camera, handheld rig or wireless remote, but its wireless preview lags when you need to frame a shot quickly.
8.0
smartzone.de
≈ estimated
25/10/2025
Hands-on test · Three-in-one camera
Verdict
The SJCAM C400 is a three-in-one camera that suits divers and snorkelers, but its hidden menu and sand-prone handle screen are drawbacks.

Third-party reviews

What customers like about SJCAM C400

  • The camera battery is rated for 172 min of recording.
  • The handle battery runs for more than 7 hours in tests.
  • Horizon leveling keeps the frame straight up to 45 degrees.
  • A dedicated bike mount is included.
  • Storage cards up to 512 GB give room for long footage.
  • A secondary screen lets you check framing while you film yourself.

What customers don't like about SJCAM C400

  • Low-light video is dark and grainy.
  • With the handle, 189 g is heavy for a pocket camera.
  • There is no microphone input, so external mics cannot be used.
  • The menu is hidden behind a swipe with no on-screen hint.
  • The swivel screen is the part most at risk from sand.

Verdict

Built around a detachable handle, the SJCAM C400 suits people who want one camera for the pocket, the hand and the bike. The camera alone weighs 54 g, and the handle brings the set to 189 g. The handle battery runs full-resolution recording for more than 7 hours in tests, and the camera battery is rated for 172 min. Horizon leveling holds the frame straight up to 45 degrees. The menu hides behind a swipe from the top left, and the 1.3 inch screen is small for checking shots. Low-light footage comes out dark or grainy, and there is no microphone input, so voice recording depends on the built-in mic. Near water, the case is essential. It suits a buyer who wants a flexible daylight camera and does not mind learning the menus.

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