SJCAM C400 Pro 3-in-1 Handheld Action Camera

SJCAM C400 Pro — A Bigger Sensor, Smarter Stabilization

SJCAM built the original C400 as a modular “3-in-1” action camera that could be worn, pocketed, or turned into a full vlogging rig with its snap-on handheld controller. The C400 Pro takes that same flexible system and upgrades the parts that matter most for image quality: a larger 1/1.8″ Starlight low-light sensor, SteadyMotion V2.0 stabilization, and support for a compatible wireless microphone — making it the camera to pick for anyone who shoots indoors, at dusk, or in mixed lighting as often as they shoot outdoors.

3-in-1 Modular Design

• Pocket Action Camera — a small, lightweight camera unit for POV, wearable, and mounted shooting.
• Detachable POV/Wearable Camera — clip it to a helmet, chest mount, or backpack strap for hands-free capture.
• Handheld Controller / Vlogging Grip — dock the camera onto the wireless handheld controller for a rotate-to-capture touchscreen grip, with up to 8m of wireless image transmission for remote framing.

Bigger Sensor for Low-Light Shooting

The 1/1.8″ Starlight sensor is significantly larger than the sensor in the standard C400, gathering more light per pixel for cleaner, less noisy footage after sunset, indoors, and in other challenging lighting — a key upgrade for vloggers and content creators who don’t want to stop shooting when the light fades.

SteadyMotion V2.0 Stabilization

Enhanced electronic image stabilization keeps handheld, walking, and action footage smooth, reducing the need for a gimbal in everyday vlogging and action use.

Wireless Mic Support

The C400 Pro supports SJCAM’s compatible wireless microphone system for cleaner, closer-sounding audio when vlogging or interviewing — a feature the base C400 does not offer.

Specifications

What’s in the Box

• SJCAM C400 Pro camera unit
• Handheld controller / grip
• Waterproof case
• Frame mount, curved & flat mounts, back clip
• Carrying bag
• Magnet pendant & lanyard
• USB charging cable
• Mounting screws, adhesive stickers, cleaning cloth

Box contents may vary slightly by bundle/region.

Frequently Asked Questions

Q: What makes the C400 Pro different from the standard SJCAM C400?
A: The Pro upgrades to a larger 1/1.8″ Starlight low-light sensor, adds SteadyMotion V2.0 stabilization, and adds support for a compatible wireless microphone — all aimed at better image and audio quality, especially in low light.

Q: Is the C400 Pro waterproof on its own?
A: The camera unit is waterproof up to 30m only when used with the included waterproof case. The handheld controller itself is not waterproof.

Q: What memory card does it need?
A: A microSD card up to 512GB is required and sold separately.

Q: Can I use it as a normal vlogging camera without the extra mounts?
A: Yes — dock the camera into the handheld controller for a rotate-to-capture vlogging grip with a touchscreen, or use the camera alone in compact pocket/POV mode.

Q: Does it work with external wireless microphones?
A: It supports SJCAM’s own compatible wireless microphone accessory; wired mics and third-party wireless mics are not supported.

Specifications are based on SJCAM’s official product information and are subject to change by the manufacturer. “Up to” figures represent manufacturer-rated maximums under ideal conditions.