
DJI Osmo Action 6 Enhanced Combo, Action Camera
Score: 100/100
Sjcam C400
Score: 97/100Rankings

The DJI Osmo Action 6 Enhanced Combo combines a 1/1.1-inch sensor with a variable f/2.0-f/4.0 aperture, 8K video, RockSteady 3.0+ stabilization, 4 h battery life and dual OLED screens, delivering professional-grade performance for creators.

The C400 offers an impressive 7-hour 4K runtime, robust 6-axis stabilization and a modular design with a detachable camera and live-streaming capability, though it lacks an external mic and premium build.
| Attribute | ![]() | ![]() |
|---|---|---|
4,320 pbest | 2,160 p | |
240 fpsbest | 120 fps | |
4 hours | 7.28 hoursbest | |
| ↓ lower better | 149 g | 78 gbest |
60 mbest | 30 m | |
155 degreesbest | 154 degrees | |
1,950 mAhbest | 1,250 mAh | |
| ↓ lower better | — | 2.75 hoursbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Design(2) | ||
Weight (g) | 149 g | 78 g |
Waterproof Depth (m) | 60 m | 30 m |
Battery & Power(2) | ||
Battery Capacity (mAh) | 1950 mAh | 1250 mAh |
Battery Life (hours) | 4 hours | 7.28 hours |
Video & Imaging(5) | ||
Video Resolution (p) | 4320 p | 2160 p |
Frame Rate (fps) | 240 fps | 120 fps |
Field of View (degrees) | 155 degrees | 154 degrees |
Lens Aperture (f) | 2.0-4.0 f | 2.0 f |
Sensor Size (inches) | 1/1.1 inches | 0.357 inches |
Display(1) | ||
Screen Size (inches) | 2.5 inches | 2.29 inches |

Products in the top-left offer the best value (high score, low price).

Professional reviewers praise the Osmo Action 6 for its groundbreaking variable aperture, large sensor and HorizonSteady stabilization, calling it the most capable action camera for low-light and extreme-environment shooting, while noting concerns about the aperture mechanism durability and lack of 8K stabilization.
Everyday users repeatedly highlight the low-light capability, long battery life and built-in storage, but also mention the demanding hardware needed for 8K editing, the modest front screen and the absence of a speaker.

“Variable aperture delivers strong low-light performance”

“The dual OLED screens are bright even in direct sunlight”

“Battery lasts through a full day of shooting in cold weather”




Reviewers commend the ultra-long battery life, strong stabilization and modular design, but note the missing external mic, plastic feel and lack of vertical video mode.
Users rave about the long battery life and remote preview, while complaining about absent mic input and occasional app disconnects.