Fever will appear when playing games and surfing the internet, and it will be a little hot after playing for a long time. But now the 2.3 system has solved this problem, and playing games will also cause fever, but it is not serious.

M9 adopts tempered glass outer screen, which is high in strength, wear-resistant but fragile. This external screen is the same as the iPhone4, but the strength is not low. No mobile phone can withstand pressure, even the tempered glass is broken, and so are other mobile phones.

Some software can't be used in full screen, but it can't be displayed either. Some don't work, and some don't. It is also related to network settings. For example, 5 1 dating software can only be connected if it is set to cmnet or wifi.

The performance is similar to that of I9000. After all, CPU and GPU are the same, but the screens of these two mobile phones have their own advantages, one with high resolution and the other with bright colors. And I9000 has a flash, M9 doesn't, so it's not ideal to take pictures at night.

There is nothing wrong with M9 at present, such as one-way communication, and occasionally it will crash if it is not sleepy, which is a common problem of smart phones.

The screen will change color. I used it for more than two months and met it twice. Only after I bought it. I haven't known how to use it for a long time. It's probably improper use, but it's gone now.

That's about it. So much so far.