SJCAM C400
The detachable wireless controller and 7-hour battery life set this action camera apart for uninterrupted, remote-framed shooting. Its 154° wide-angle f/2.0 lens and 6-axis stabilization deliver smooth 4K footage, while the included waterproof housing enables 30-meter underwater use. This camera is best for travel vloggers and outdoor sports participants who need a wearable, all-day recording solution with versatile mounting options.
Aperçu
The 30-Second Version
The SJCAM C400 is a budget action cam with two killer features: a rotating touchscreen and a detachable wireless controller. The stabilization is solid, but the sensor is weak, so stick to daylight shooting. At around $190, it's a fun, flexible tool for vloggers who care more about creative angles than perfect image quality.
Pros & Cons
Points forts
- The detachable wireless controller is genuinely clever for framing shots from a distance. 88th
- That articulating touchscreen is a top-tier feature you rarely see at this end of the market. 87th
- Stabilization is well above average and keeps handheld footage smooth. 79th
- Comes with a full waterproof housing and mounts, so it's ready for action out of the box. 78th
Points faibles
- The sensor is a weak spot, so low-light performance is pretty rough.
- Autofocus is unreliable and can ruin a shot if you're moving around a lot.
- Battery life is middle-of-the-pack, not the all-day miracle the marketing claims.
- Photography is its weakest area by far, so don't buy this as a hybrid shooter.
L'avis des propriétaires
The Word on the Street
Les preuves
Performance
Video quality is a mixed bag. The 4K resolution is there, and the 154-degree lens gives you that ultra-wide look that's great for POV shots, but the sensor itself lands in the 29th percentile for this category. That means you'll get decent footage in bright daylight, but things get grainy fast when the sun dips. The 6-axis stabilization is a genuine bright spot, sitting in the 79th percentile and doing a solid job of smoothing out bumps. The 2.29-inch articulating touchscreen is a standout feature at the 87th percentile, making it way easier to frame selfie shots than on a fixed-screen action cam. Just don't expect much from the autofocus, it's in the 36th percentile and can hunt a bit.
Specifications
Full Specifications
Sensor
| Type | CMOS |
Video
| Max Resolution | 4K |
| Log Profile | Yes |
| Codec | MP4 |
Display & EVF
| Screen Size | 2.29" |
| Touchscreen | Yes |
| Articulating | Yes |
Build
| Weather Sealed | Yes |
| Weight | 0.8 kg / 1.7 lbs |
Connectivity
| Wi-Fi | Yes |
| Bluetooth | No |
vs Competition
Stacked against the heavy hitters in our database like the Sony Alpha a6400 or the Olympus OM-D E-M1 Mark II, the C400 is playing a completely different game. Those are proper mirrorless cameras with much larger sensors and interchangeable lenses, so they'll absolutely smoke the SJCAM in photo and video quality. But they're also bigger, pricier, and not waterproof without a separate housing. The C400's real fight is with other budget action cams. It carves out a niche with its articulating screen and detachable controller, features you won't find on a GoPro Hero. If you prioritize creative framing angles over absolute image fidelity, the C400 makes a compelling argument.
| Spec | SJCAM C400 | Sony a7R V | Fujifilm X-H2S | Nikon Z Z9 | Canon EOS R6 Mark III | Panasonic LUMIX S5 II |
|---|---|---|---|---|---|---|
| Type | action | mirrorless | mirrorless | mirrorless | mirrorless | mirrorless |
| Sensor | ?MP | 61MP full-frame | 26.2MP aps-c | 45.7MP full-frame | 32.5MP full-frame | 24.2MP full-frame |
| AF Points | - | 693 | 425 | 493 | 1053 | 779 |
| Burst FPS | - | 10 | 40 | 30 | 40 | 30 |
| Video | 4K | 8K @60fps | 6K @120fps | 8K @120fps | 8K @120fps | 6K @60fps |
| IBIS | true | true | true | true | true | true |
| Weather Sealed | true | true | true | true | true | true |
| Weight (g) | 780 | 723 | 579 | 1160 | 609 | 658 |
| Compare | Compare | Compare | Compare | Compare |
| Produit | AF | EVF | Build | Burst | Video | Sensor | Battery | Display | Connectivity | Preuve sociale | Stabilization |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SJCAM C400 | 36.2 | 40.2 | 87.6 | 34 | 70.4 | 29.3 | 46.7 | 87.2 | 57.4 | 77.5 | 78.7 |
| Sony a7R V Compare | 95.4 | 99.2 | 97.1 | 78.9 | 96 | 77.5 | 94.5 | 87.2 | 95.4 | 97.8 | 98.6 |
| Fujifilm X-H2S Compare | 90.8 | 96.9 | 94.6 | 93.5 | 97.9 | 96.8 | 98.6 | 99 | 95.4 | 90.2 | 95.5 |
| Nikon Z Z9 Compare | 92.5 | 91.7 | 99.4 | 96 | 98.9 | 71 | 98.1 | 87.2 | 95.4 | 94.2 | 88.9 |
| Canon EOS R6 Mark III Compare | 99 | 90.8 | 95.1 | 93.5 | 98.5 | 65.1 | 97.6 | 99 | 95.4 | 94.2 | 99.7 |
| Panasonic LUMIX S5 II Compare | 97.9 | 91.1 | 96.1 | 91.6 | 94.4 | 55.5 | 92.7 | 99.3 | 95.4 | 94.2 | 88.9 |
Prix
Value & Pricing
Pricing for the C400 is all over the map, with a wild spread from $190 to over $33,000 across different vendors. Let's be real, the $33k listing is either a joke or a typo. The real price you should be looking for is around that $190 mark on Amazon. At that price, you're getting a feature set that punches above its weight, especially with the unique controller and screen. It's a solid deal for a beginner vlogger who needs a rugged, waterproof camera. Just don't expect it to compete with a $400 action cam from GoPro or DJI on pure image quality.
En savoir plus
Overview
The SJCAM C400 is a pocketable action cam that's clearly gunning for vloggers and travelers who want a GoPro alternative without the GoPro price tag. It packs 4K video, a clever detachable wireless controller, and a rotating touchscreen into a body that's waterproof to 30 meters with the included housing. The spec sheet reads like a wishlist for a budget-friendly creator cam, but the real question is whether the performance backs up the marketing hype.
Common Questions
Q: Is the SJCAM C400 really waterproof to 30 meters out of the box?
No, you need to use the included waterproof housing to hit that 30-meter depth rating. The camera body itself is not waterproof without it.
Q: Can I use this as a webcam for live streaming?
Yes, the C400 supports live streaming over its 5G WiFi connection, and the articulating screen makes it easy to frame yourself. Just keep in mind the sensor's low-light limits if your streaming space isn't well-lit.
Q: How does the detachable wireless controller actually work?
The controller pops off the camera body and lets you preview the shot and adjust settings from a distance. It's a handy feature for framing group shots or mounting the camera somewhere you can't easily reach.
Who Should Skip This
If you need a camera that takes great still photos or shoots clean video at night, look elsewhere. The tiny sensor and weak autofocus make this a poor choice for photography or dimly lit vlogging. You'd be much happier with a used Sony ZV-1 or even a recent GoPro for low-light action.
Verdict
The SJCAM C400 is a quirky, feature-packed action cam for the creator who values flexibility over raw image quality. It's a great fit for a travel vlogger who wants to easily film themselves with the rotating screen and detachable remote, or for someone who needs a cheap, waterproof camera for snorkeling and biking. The stabilization is good, and the included accessories mean you can start shooting right away. Just know that you're trading top-tier video performance for those clever design tricks.