The main differences between the two LG G4 OLED models are likely related to design and packaging rather than core functionality. Here are some potential differences:

- Design and Mounting: The «Gallery Edition» might include specific design elements or a unique mounting system, such as the Zero Gap Design, which allows the TV to fit snugly against the wall.
- Packaging and Accessories: The Gallery Edition could come with additional accessories or a different packaging style.
- Color or Finish: There might be variations in the color or finish of the TV's frame or stand.

For precise details, it's best to check the official product descriptions or contact the retailer directly.