A9F對比A8F既優勢:
-dynamic tone mapping(for hdr10)
-pixel contrast booster
-x1 ultimate 改善左input lag
非常小
- 行android既hardware明顯好左好多
距離呢個問題真係因人而異
sony 直頭建議你1米睇55吋
但我相信冇咩人會咁做
(The recommended distance when viewing a video or a program from a 4K TV is 1.5 times of the TV vertical screen size.)
如果真係太大
lgd年頭既roadmap提及未來會出48吋oled panel
不過我相信都起碼2020年先有 product