After all, the 9000 was once the flagship. It looks atmospheric, meticulous in workmanship and feels very good. The screen looks more comfortable than the other two models, and the sound is unparalleled. After blowing out the advantages, it's not enough ... I can't upgrade to OS6, the storage memory of the camera is too small (it's only about 50M after brushing slim ROM, and the body of 1G flash memory can only store files but can't install software), and the camera doesn't have autofocus.

9700 has a detailed and high-grade appearance. There is no atmosphere of 9000, just like ordinary mobile phones. Without the elegance of 9000, the system can be upgraded to OS6, but occasionally there will be a small card. The memory of the fuselage is large enough to install software at will, which is similar to that of 9000. I have to say that this machine is very standby. 1 day I can use 9000, and I can use 9700 in the last three days.

9780 means that the running memory and storage memory are twice that of 9700. Other conditions are the same as 9700, and there is no essential change.

Summary: 9000 is a machine with obvious advantages and disadvantages. Acceptable disadvantage is 9000, and unacceptable disadvantage is 9700 (9780 with sufficient funds).

Used 9000 and 9700, I don't know.