Mobile phone expert to help me compare.

8 10c, that's what I used. Very good. There are no shortcomings except that the screen is a little small and the sound is low. Very cost-effective. The response of 830c system is too slow, and it is too troublesome to send text messages.

Let's talk about the disadvantages of 8 10C.

1. Alarm clock does not support alarm when turned off and charged. It rang twice, but it didn't ring. It was almost late.

2. Received, missed and dialed calls. The same number only shows the total number of calls, not the time of each call, which is uncomfortable.

3. Auto-locking keyboard does not support custom time.

When you turn off the alarm clock, you can only turn it off after the alarm clock is over, but you can't choose to turn it on. What logic? Software is not human at all.

5. Turn on the phone and you can directly enter the flight mode of listening to music. Why can't I switch to flight mode directly from mobile phone mode? It's not convenient at all

6. Address book search, since you are 8 10c, sell it in China. Of course, address book search gives priority to the pinyin of the first Chinese character, and you have to press # to support the pinyin search of the first Chinese character. No trouble. Whoever wrote this part of the software must have been kicked in the head by a donkey. Look how convenient it is to find Nokia.

7. When recording voice dialing, it is difficult to succeed without headphones, and you are always prompted to record in a quiet place, and you can only bring headphones.

8. Music player, it is very inconvenient to add songs, so you can only add them one by one. Moreover, the songs stored in the memory card and the mobile phone are inseparable. It's a mess. It's really rubbish to look for one by one. The sonic boom is still quite frequent, and it will definitely happen once an hour.

9. When the cell phone signal condition is not very good, it is easy to disconnect or the other party can't hear you.

10. The screen saver is also very strange. After setting a picture, it only shakes for a few seconds after automatically locking the keyboard, which is estimated to be about 5 seconds, not to mention the screen saver clock. If you want to see the time, you must press the volume button and the music button on the side.

Advantages:

1, the phone book query speed is relatively fast;

2. The functions of photography, radio and flashlight are very practical;

3, it is easier to get started;

4. The battery is OK and can be used for more than 4 days.

Speaking of W830C, everyone will think of the golden and dazzling W-dedicated music mobile phone logo! It's really dazzling, because Sony Ericsson's W logo on W830C is plated with 24K pure gold ... Of course, it's worth mentioning! As the first player to describe "shock" with 2.0W, it sounds great ...! The first time I listened to music with W830C earplugs, I was defeated by the shocking music! I get goose bumps from time to time when I listen to music! Sometimes I cry when I listen to it {of course I'm not crying to listen to music}. I used W550 before, but it only brought me better music enjoyment than ordinary mobile phones. Not shocking at all! Until I used W830! But W830' s response to sending messages is really a little slow, and it's super slow to enter the password on QQ. Like eating tons of lard! I've been typing the password for almost fifteen minutes! However, I want to praise W830C for being able to run multiple programs at the same time! Although it is not a smart phone, it feels like a smart phone! Basically, playing games and listening to songs while hanging QQ! I can't even get stuck,,, If I open one more program, the response will be much slower! It may be that the processing power of CUP is limited! I hope to be promoted! Also, W830C will restart sometimes, but it's not a big problem! {This should not be a collapse! However, W830C music is really professional, especially the 5300, 3250 and N73 music versions in Noki can't do it! The slider is very strong, not as loose as some friends say. I can't feel the obvious shaking when I shake it a little, and the panel is not as fragile as I thought. When using the navigation keys below, use the inside of your thumb instead of your nails. Although the navigation key looks small, it will not feel when you get used to it. The speed of text messages is unacceptable. Maybe I'm not used to the short message mode of Sony Ericsson ~ If I don't listen to music very much, there are about 15 short messages in standby time. My panel will be fine for 4 or 5 days.

Summarize the shortcomings again

1. The biggest problem is that you can't zoom digitally (I don't know if it's a case), let alone zoom automatically.

2. More importantly, the shortcut key for music playback (comrades who use 800 should know that it is on the top left of the mobile phone) can control the playback and stop after plugging in headphones. It disappeared at 850, which is very inconvenient. I wonder what engineers at Sony Ericsson think. When I use 800, there is no forward and backward button, which makes me feel very uncomfortable. 850 has it, but it basically doesn't work, because after the keyboard is locked, it can't go forward or backward, which is simply a chicken rib. Of course, if the 850 comes standard with wired headphones, this problem can also be solved, but this is not the case. If you want to control by wire, you need to continue to pay. I suspect that Sony Ericsson did it on purpose.

3. The circular gap next to the external speaker is too big, which is easy to leak dust. This design should be bruised.

4. The left and right function keys of the mobile phone are very loose, and I suspect that it is easy to break down or have poor contact. I hope this is an example.

5. It is inconvenient to take out the battery after replacing it with the sliding cover, and the method of taking out the battery should be improved.

6. Although upgraded to usb2.0, the transmission speed doesn't seem to be much faster, especially when using dic2phone. This may be my own feeling, but I really don't want to be cheated.

7. The earphone interface is actually a data line interface, which deeply feels the shameful behavior of Sony Ericsson not making progress and deceiving customers to buy a machine.

8. There is the old problem. After the alarm goes off in the morning, you can't directly prompt the startup problem. The default phone book query is English, and you need to press the corresponding number keys to input Chinese characters. These small problems will bring a lot of trouble to users, but they are still not solved.