If I want to buy a 2 hand phone iphone4!! How can I be sure that it is a good machine!!

Dear Samsung users: According to your description: The question of comparing the Samsung mobile phone you consulted with other brands of mobile phones, because the brands are different, the design concept of the product is also different, each has its own advantages, it is recommended that you choose the right mobile phone according to your needs and preferences.

If you want to know the configuration parameters of Samsung i9100 mobile phone, please refer to the following introduction: Processor) Dual-core processor (Samsung"Orion"exynos c210 cpu）。2.

Memory: total ROM about 16G, total capacity of internal hard disk, program installation, others are occupied by the system; Total RAM is about 1g; The actual display is about 826MB, the maximum usable is about 480MB, and the rest is occupied by the system; Memory card: Up to 32GB micro SD card.

3.Camera: 8 million pixel rear camera; 2 million front-facing cameras.

Flash-supported; Framing mode: landscape when holding the phone horizontally to take pictures, portrait when holding the phone vertically to take pictures; Autofocus is supported. 4.

Software Format: APK5Bluetooth version:

Bluetooth evaluation, suggestions, complaints, please click:

Apple 4,1G CPU inch multi-touch screen, the appearance is stylish but fragile! RAM 16 32G and triple i9100 about the same! All support a variety of mobile phone styles, rich in business entertainment!

The AnyCall i9100's CPU dual-core frequency is higher, which means that it has faster processing speed and smooth response; The touch screen is larger, so it's cool to do anything! The hardware is stronger than the 4th generation, the two are not too much different, and overall Samsung's is better than the 4th generation!

The disadvantage is that you have to use iTunes to transfer things, and you can use the synchronization assistant after jailbreaking, and you can't directly use data cables to transfer to each other. Other shortcomings can be ignored.

As for the advantages, you can go to Unicom or go to a store with **Apple to experience it, and its advantages are greater than the sum of the mobile phones you have used!

Unicom depends on what contract you sign, if you sign 5880, you can only use Unicom card, if the card is separated, there may be downtime and no phone bill refund. The kind of 4999 will give you a certain phone bill subsidy if you use a Unicom card.

I don't know what you mean by pure practice.

Let's not talk about the advantages, I can't talk about the disadvantages.

If you are not a lover of 3C products, or do not have a certain experience in the use of digital products, then the iPhone4 will not know where to start, I have met many people who are like this, take an iPhone4, and don't even know how to synchronize If you are a novice in this regard, then you will hit a wall everywhere when you use it.

The most uncomfortable thing about the iPhone 4 hardware for me is the battery, which I charge once every 2 days on average, and if I use it a little more often in a day, I have to charge it once a day.

The screen and the glass on the back are easy to break, and if you don't protect it, it will be a lot of money to repair.

At present, in my use, I feel that these areas are still insufficient, and I hope it can help you.

Advantages: fashionable, atmospheric, multi-application, excellent quality.

Cons: Too expensive There is a tendency to become an arcade machine.

The iphone4 has been discontinued a long time ago, and it should be difficult to buy now, and it is almost impossible to buy a brand new iphone4, if you really want to buy it, you can buy the iphone6! The screen is also much larger. Now it's out of 6s, you can buy 6

1All at present, iPhone4 rarely has a refurbished machine, and it is divided into several versions on the market, with a locked version, an unlocked version, and the unlocked version is mostly the Hong Kong version, which is more common, that is, it is not bound to any operator, and you can play it by inserting the **card directly**. The locked version is mostly the American version is more common, that is, the locked version, it will be bound to the service with the local operator, it needs to be cracked to use, and some hard unlocked versions have appeared on the market recently, I recommend buying the Hong Kong version of the iphone4 mobile phone Huaqiang North Cyber The most powerful store should be the chain store of Bo Digital Plaza Sendu Digital: 2T17 on the second floor, 3C15 on the third floor, the whole series of iphone are in stock, free trial experience, the store is very enthusiastic, the technology has nothing to say, software and hardware together!

You can call 61302909 for more information. Mr. Dai . By the way, I would like to add that the staff of Sendu will teach you in detail to distinguish what is the Hong Kong version.

Shenzhen Huaqiangbei, the first to bear the brunt. It is recommended to go directly to Hong Kong, ** cheap things are positive.

Personally, I believe in Foshan Huanyu mobile phone chain stores, you can check it on the Internet, because I haven't had much contact with the 4th generation Apple recently, so it's better for you to see if there is a physical store! The things in Shenzhen Huaqiangbei are mostly renovated.

I can get the original**. 6000+

It's better to buy a copycat, it's affordable.

If you are second-hand, it is better to buy 4s. But the 4s and 4 second-hand ones you said are really a bit expensive... And if it's a dealer who sells you. Don't buy it sincerely... There is no pressure to fool you.

——Professional IOS, ANDROID, WP and other system knowledge and mobile phone FAQs. ——

Choose 4s, 4 has been out of production for a long time, I'm afraid that second-hand sales are refurbished or even board machines. And the configuration is so old that many games are no longer adequate.

It is recommended for iPhone 4, if you don't mainly use it for photography, there is no shortage of functions anyway.

It depends on the individual, if you want to buy a cheap one, choose 4s, and buy a better function to buy 4s

Go to the communication operator** (mobile, Unicom, telecom) to check, you can find the call details.

You can only log in to the operator **** to query.

If you delete it, you can only check it by calling the detailed list.

In fact, if you go to a friend to buy it, I don't recommend hurting feelings When 4s arrives, you will find that 4 has fallen Wait a while, I don't like to use a 2-handed mobile phone, I think it's strange.

Three or five must, other accessories must be available, the price is almost 2500 to 3000, depending on the color.

It's best to buy it from a friend you know, pay attention to whether it has been refurbished, because it may not be original if it has been refurbished, and it depends on how new you are.

Add a protective case to hang the phone ornament.

The premise is to have holes.

It's best not to hang the screen easily damaged.

What's good about telecommunications? Often there is no signal, and the text message cannot be received, do you still say that it is okay? Of course, the price is very good, cheaper than others, but why it is sold cheaply, everyone knows it.

I personally feel that this is still a good Unicom.,I use it myself.3G card,Internet access is fast.。 If you want to buy it, you can go to the Unicom business hall to handle the business of pre-depositing phone bills and giving away mobile phones. It's very practical, and half of the phone bill is refunded every month.

Some time ago, Apple has cut the price of the 4th generation, and now it should be 4500