Hi chen, great to see your project is taking form. Even so I'm also somewhat shocked reading about a 6" screen. On the other hand having a Xperia X and got finally used to the size, I made a comparison between my Xperia and the Galaxy S8 regarding size: https://phonesized.com/compare/#627,772
The S8 doesn't look horribly larger. So can you say some words how large the device will be in comparison to the S8. And if the 6" is referring to a rectangle or if it is measured from round corner to round corner.