Dude just buy the phone, doesn't matter which one.
If the iPhone you bought has any of these problems, take it to your nearest Apple store and have it replaced.
How To Get the Most From Your iPhones Warranty
via cultofmac
1. Cracks in plastic body. Many iPhone users have reported cracks in the plastic body of their iPhones. They are often described as hairline fractures. They usually appear around the iPhones buttons and ports but have been reported to appear just about anywhere. While it is unlikely that a Genius will replace your iPhone if it appears that your iPhone has been dropped or mistreated, you should still consider bringing it in for replacement. These cracks are a documented defect and Apple has routinely replaced iPhones because of this defect.
Hairline cracks have been known to form in the iPhone's body.
2. Bubbles under screen. Some iPhone users have noticed small bubbles forming underneath their iPhones screen. Take a very close look at your iPhones screen. If bubbles are present, you may have identified a defect and your iPhone should be replaced. Apple has replaced iPhones that possess this defect.
Bubbles have been reported to form underneath the iPhone's screen.
3. Light bleeding/streaks. Some iPhone users have reported light bleeding around the edge of the iPhones screen. Light bleeding will be apparent if your black iPhone screen has white light around the edges. Although this problem seems to be quite rare, if your iPhone has this defect then you may want to consider bringing it in for replacement.
4. Assembly defects. The manufacturing process is not perfect. Some users have reported defective parts of the iPhone ranging from spaces in the seams to misshapen buttons. Although this is a physical problem, a Genius may deem it to be defective if is obvious or bothersome.
5. GPS problems. Some users have had their iPhones replaced because the GPS unit was defective. Problems with the iPhones GPS unit usually manifest in the form of poor accuracy or complete dysfunction. If your GPS locator is routinely inordinately inaccurate or completely non-functional then you want to bring your iPhone in for replacement.
6. Screen discoloration. When this happens it usually occurs in the upper right portion of the screen. You will see the discoloration when the phone heats up, usually after a long phone conversation or extensive video usage. It looks like a light blob when the background is black, and like a yellowish blob when the background is white. Apparently this issue will get worse over time, so you should seriously consider taking your iPhone in for replacement if you are experiencing this problem. When going to the Apple Store, take the time to heat up your phone so that when you sit down with the Genius the problem is clearly visible. They should replace your iPhone.
An example of screen discoloration.
7. Inconsistent WiFi connectivity. Many of you may be experiencing this problem but are unaware of it. The clearest sign is when you routinely need to re-select your WiFi access point whenever your iPhone goes to sleep (when it locks itself due to inactivity). Another sign is your iPhone frequently reverts to Edge or 3G despite being connected to a functional WiFi network. Or you may have noticed that when waking up your iPhone, a wireless network that you had just been connected to is no longer showing up when you are prompted to select a network. While there are many WiFi issues that can be corrected in software (resetting the iPhone, restoring the iPhone, forgetting the network, toggling Airplane Mode, or adjusting password or DNS settings on your wireless router), systemic WiFi problems may be indicative of a known issue with the WiFi antenna. [ur=http://reviews.cnet.com/8301-19512_7-10115812-233.html]If your iPhone is displaying these symptoms you should consider taking it in for a replacement.[/url]
8. Clock and text and/or call reception problems. Some iPhone users have reported experiencing problems with their iPhones clock keeping the proper time. They have sometimes also had problems such as delayed receipt of text messages (anywhere from two minutes to 30+ minutes) and problems receiving phone calls correctly (i.e. the iPhone does not ring when someone calls). These problems have been linked to damaged Edge and 3G antennas and may be grounds to receive a replacement iPhone.
9. Camera problems. Many iPhone users have reported issues with the iPhones camera. Test it out to make sure it functions properly if you do not regularly use it. Some people have reported greenish tints in photographs taken by the camera. While some suggest that this issue can be remedied by editing the photos, others have successfully had their iPhones replaced due to this issue. Many people have reported other problems with the iPhones camera ranging from simply not working to taking photos with strange colors present. If you are experiencing any problems with your iPhones camera you should consider having it replaced.
Some users have reported strange discoloration in photos taken from their iPhone's camera.
10. Bluetooth problems. Some iPhone owners have experienced trouble either connecting to or maintaining a connection with Bluetooth devices. If you have been unable to resolve issues with your Bluetooth connectivity, you should consider bringing your iPhone in to be replaced. If you have not tested your iPhones Bluetooth features, you should. It would be a shame if you discovered that your iPhones Bluetooth is non-functional a month after your warranty lapses, especially with the advent of iPhone applications such as Skype.
11. External speaker problems. Does your external speaker sound muddled? Does your external speaker not work? Does your iPhone behave as if it always has its headphones plugged in even when they are not? If any of these occur persistently then you may have a problem with your speaker or headphone jack. If you are unable to fix the problem by the usual methods (resetting iPhone, restoring iPhone, or inserting and removing your headphone jack) then you should consider taking your iPhone to an Apple Store.
12. Headphone problems. Some iPhone owners have reported problems with their headphones not functioning properly. Make sure that your headphones are not the problem. If the problem occurs on different sets of headphones then something might be wrong with your iPhone headphone jack. You should consider taking your iPhone to an Apple Store.
13. Battery problems. Apples 1-year warranty does cover defective batteries. What precisely constitutes a defective battery is difficult to establish. Should your iPhone be showing signs of battery trouble, you would best be served by arguing that the battery was defective, and not that it simply wore out. If your iPhone is exhibiting any other atypical behavior such as excessive heating while charging or inconsistent power monitoring, your argument will be much stronger. Apple estimates that an iPhone battery should last approximately 400 charges. If you are consulting an Apple Genius then you may want to mention approximately how often you charge your iPhone. As long as your iPhone is still under the warranty, poor battery life may be an avenue to demand a new iPhone.
14. Accelerometer problems. Many iPhone owners have reported problems with the built-in accelerometer. Anyone who uses their iPhone for gaming or frequently flips their iPhone on its side to view in landscape mode will know whether their iPhones accelerometer is functioning correctly. Be sure you are holding your iPhone vertically when rotating it; the accelerometer may not function correctly otherwise. Remember, it is based on gravity, so extraneous movement (i.e. walking, jogging, tilting, etc.) may confuse the accelerometer. However, if you genuinely believe your accelerometer may not be functioning correctly you should take your phone in to be replaced.
15. Ambient light sensor problems. The iPhones ambient light sensors are located near the top of the iPhone. To test whether the ambient light sensors are functioning get a bright flashlight and go to Settings à Brightness and turn the brightness down as far as it will go. Make sure auto-brightness is turned on. Press the sleep button at the top of the iPhone. Cover the ambient light sensors with your hand. Once the iPhone is asleep press the wake button and unlock the iPhone. Note the brightness of the screen. Then uncover the sensors and shine the flashlight at them. The screen should get a little bit brighter. If your iPhone is unresponsive you should consider taking it in for a replacement.
You can see the ambient light sensors underneath the iPhone's face.
16. Proximity sensor problems. The proximity sensor makes sure that your iPhone turns its screen off when the phone is placed near your ear. If the proximity sensor is functioning properly, your iPhone should shut its screen off during phone calls when it is placed near your ear. The screen should turn back on when you move the phone away from your ear. Some owners have reported iPhones with defective proximity sensors. A defective sensor may fail to turn the screen on when it is removed from the phone call position, which results in an inability to use the touch screen while making a phone call. It also may not properly turn the screen off, which results in owners inadvertently hitting touch screen buttons while speaking on the iPhone. If you believe that your proximity sensor is not functioning correctly, you should bring your iPhone in for a replacement.
17. Dead or stuck pixels. If your iPhones screen has multiple dead or stuck pixels you should consider bringing your iPhone in for a replacement. At one point in time, Apple had a zero tolerance policy regarding the iPhone screens. That meant that even one dead or stuck pixel was grounds for replacement. However, more recently Geniuses have been reported to deny this policy. Whether it is technically legal for them to do so is a question that goes beyond the scope of this article because it depends on many factors specific to the iPhone owner (i.e. did an Apple representative tell you about this policy). If your iPhone has dead or stuck pixels you may still be able to have your iPhone replaced on these grounds. The Genius may refuse to replace your iPhone, but if you are persistent you may succeed. This is a grey area but it is certainly worth a try especially if your iPhone has numerous dead or stuck pixels.
18. Mechanical buttons and switches. Although most physical problems are normally attributable to intentional or negligent acts by the iPhones owner, the switches on the iPhone may break or wear out. If they do wear out during the 1-year warranty period then it is probably due to some defect. However, be careful because an Apple Genius may be reluctant to replace your iPhone if shows evidence of other external physical damage.
