[maroon93]

Dual cameras

1. More light can be taken in, leading to better images in the dark
   
2. Less shake in the image because two images are overlapped and fuzzy details are clarified
   
3. You can refocus the image after taking the it.
   
4. Easier to apply effects like bokeh, vignette because of greater details captures.
   
5. Disadvantage? Higher battery consumption, both lenses have to be unblocked to take images, resolution of the image will be skimped on in certain conditions.