4+64, 6+64 and 6+128 are the only three, right?Why can't I find 4+64 at night? The most satisfactory place is the screen. Borderless is really amazing. The appearance is beautifulmobile phoneFirst class standard (attached belowNuby I personally don't play mobile games. It runs very smoothly in daily use. The split screen function is very practical and is used more often. I usually turn off the edge gestures, which is very likely to be touched by mistake. As for what people say about the lack of systems, I really don't have much sympathy. In my opinion,This is the way Nubia calls out some function settings, which is a little different from ordinary Android machines. It's better to get used to it.