1. Introduction
This manual provides detailed instructions for the safe and effective use of your SJCAM C400 Vlogging Camera. Please read this manual thoroughly before operating the device and retain it for future reference.
The SJCAM C400 is a versatile 4K action camera designed for vlogging, travel, and outdoor activities. It features 6-axis stabilization, a rotatable touchscreen, and extended battery life with its accompanying grip.
2. What's in the Box
Your SJCAM C400 package includes the following items:
- SJCAM C400 Camera Unit
- Handheld Controller/Battery Grip
- Waterproof Housing (up to 30 meters)
- Mini Tripod
- Magnetic Lanyard
- Bike Mount
- Helmet Base
- Various Mounting Bases (curved and flat)
- 3M Adhesive Stickers
- USB-C Cable
- Cleaning Cloth
- Wrist Lanyard
- MicroSD Card (64GB, Sandisk)

Image: All accessories included with the SJCAM C400 camera, including the camera unit, handheld controller, waterproof housing, various mounts, and a 64GB microSD card.
3. Camera Overview
3.1 Components
- Camera Unit: Main recording device with lens and small display.
- Handheld Controller: Features a larger 2.29-inch rotatable touchscreen, control buttons, and an integrated battery.
- USB-C Port: For charging and data transfer (located on both camera and controller).
- MicroSD Card Slot: For storage (located on the camera unit).

Image: The SJCAM C400 camera unit attached to its handheld controller, mounted on a mini tripod, alongside other accessories like the carrying case and waterproof housing.
4. Setup
4.1 Charging the Battery
Before first use, fully charge the camera and handheld controller. Connect the provided USB-C cable to the camera and/or controller and a USB power adapter (not included). The charging time for the camera alone is approximately 2 hours and 4 minutes. Charging the grip alone or the camera with the grip takes approximately 2 hours and 45 minutes.
4.2 Inserting a MicroSD Card
Locate the microSD card slot on the camera unit. Insert the provided 64GB microSD card with the contacts facing down until it clicks into place. Ensure the camera is powered off before inserting or removing the card.
4.3 Assembling the Camera and Grip
The camera unit can be used independently or attached to the handheld controller. To attach, align the camera unit with the connector on the controller and slide it into place until it securely locks. To detach, press the release button (if present) and slide the camera unit off.
4.4 Attaching Accessories
The SJCAM C400 comes with a variety of mounts. Attach the desired mount (e.g., bike mount, helmet base, magnetic lanyard) to the camera unit or controller as needed for your activity. Ensure all connections are secure before use.

Image: A user demonstrating how to attach the SJCAM C400 camera unit to the magnetic lanyard for hands-free recording.
5. Operation
5.1 Powering On/Off
To power on the camera, rotate the touchscreen display on the handheld controller. To power off, rotate the screen back to its closed position or long-press the power button.
5.2 Using the Touchscreen
The 2.29-inch rotatable touchscreen allows for intuitive control. Swipe and tap to navigate menus, change settings, and switch between shooting modes. Rotating the screen also allows instant switching between horizontal (16:9) and vertical (9:16) shooting orientations.

Image: The SJCAM C400's advanced rotating screen, demonstrating how it can be adjusted for both 16:9 horizontal and 9:16 vertical video capture.
5.3 Shooting Modes
The C400 offers various shooting modes:
- Video: Record high-definition video up to 4K resolution at 30fps.
- Photo: Capture still images up to 16MP.
- Timelapse: Create time-lapse videos.
- Slow Motion: Record slow-motion footage.
- Dashcam: Function as a car dashboard camera.
- Live Streaming: Share your adventures in real-time via Wi-Fi.
5.4 Stabilization
The camera features 6-axis electronic image stabilization (EIS) and horizon correction to ensure smooth and stable footage, even during dynamic activities. This technology compensates for vibrations and movements, resulting in clear and level videos.
5.5 Waterproof Usage
When enclosed in the included waterproof housing, the SJCAM C400 is submersible up to 30 meters (98 feet). This allows for capturing underwater activities such as snorkeling, diving, and watersports. Ensure the housing is properly sealed before entering water.

Image: The SJCAM C400 camera, protected by its waterproof housing, being used underwater to capture marine life.
5.6 Connecting to the App (Wireless Control)
The camera supports Dual-Band Wi-Fi (2.4G/5G) for fast data transfer and Bluetooth for remote control. Download the official SJCAM app to your smartphone to control the camera remotely, view live footage, and transfer files.

Image: A child using the SJCAM C400 handheld controller wirelessly to capture footage, demonstrating the camera's remote control capabilities.
5.7 Battery Life Management
The C400 offers extended battery life. The camera alone can record up to 172 minutes in 4K/30fps. When combined with the battery grip, the total autonomy extends to approximately 437 minutes (over 7 hours), allowing for prolonged recording sessions.

Image: The SJCAM C400 camera and controller setup, highlighting its impressive 7-hour battery life for extended recording.
6. Maintenance
6.1 Cleaning
- Use the provided cleaning cloth to gently wipe the lens and screens.
- For stubborn smudges, use a lens cleaning solution specifically designed for camera optics.
- Ensure the camera and accessories are dry before storage.
6.2 Storage
Store the camera and its accessories in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided semi-rigid pouch for protection during transport and storage.

Image: The SJCAM C400's protective carrying case, designed for safe and convenient transport of the camera and its accessories.
6.3 Firmware Updates
Periodically check the official SJCAM website or app for available firmware updates. Keeping your camera's firmware up-to-date ensures optimal performance and access to new features.
7. Troubleshooting
- Camera not powering on: Ensure the battery is charged. Check if the screen is rotated correctly to activate.
- Video footage is shaky: Verify that 6-axis stabilization (EIS) is enabled in the camera settings.
- MicroSD card error: Ensure the card is inserted correctly. Try formatting the card in the camera (this will erase all data). Use a high-speed, reputable brand microSD card.
- Connectivity issues (Wi-Fi/Bluetooth): Ensure the camera and your smartphone are within range. Restart both devices. Check app permissions on your smartphone.
- Screen unresponsive: Try restarting the camera. If the issue persists, contact customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | SJCAM |
| Model Number | C400 |
| Sensor Technology | CMOS (1/2.8") |
| Lens | 154° Wide-angle glass lens |
| Video Capture Resolution | 4K (30fps), 2K (60fps/30fps), 1080P (120fps/60fps/30fps), 720P (120fps/60fps/30fps) |
| Photo Resolution | 16MP, 12MP, 8MP, 5MP, 2MP |
| Stabilization | 6-Axis EIS (Electronic Image Stabilization) |
| Touchscreen Size | 2.29 inches (Rotatable) |
| Waterproof Depth | Up to 30 meters (with included housing) |
| Connectivity | Dual-Band Wi-Fi (2.4G/5G), Bluetooth, USB-C |
| Battery Life (4K/30fps) | Camera only: ~172 minutes; Camera + Grip: ~437 minutes |
| Dimensions | 18 x 17.3 x 7.4 cm (packaged) |
| Weight | 430 grams (packaged) |
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official SJCAM website or contact their customer service directly. Keep your proof of purchase for warranty claims.





