Apple iphone 4 (Short Review)

Launched in the U.S., Japan, UK, France and Germany on June 24, 2010. The first major difference of this version over previous ones is its design. Both the front and rear are made of aluminum silicate glass addition to a stainless steel frame which also functions as an antenna.  

The iPhone 4 is now thinner at 9.3 mm thick. The display also features improvements. Its size is 3.5 inches with 960 × 640 pixels. Called by them "Retinal Display", has four times the resolution (twice on each side) that the iPhone 3G and 326 pixels per inch, has 78% of the pixels of the iPad. As expected, the iPhone 4 now has two cameras, one front and one rear video calls with a quality 5 megapixel camera and LED photo flash. Now you can record 720p HD video and autofocus function is already enabled for video. It also has 512 MB of RAM. As expected the iPhone 4 left the factory with the operating system renamed iOS4 (a name more consistent since the iPod Touch and the iPad make use of it), and in addition to the features that had already been announced operating system the new resolution automatically provide better quality text and buttons and developers can make their applications compatible with this new resolution. iMovie has been present in order to edit HD videos taken directly to the phone. 
Together with the other phone sensors, a gyroscope has been included, which will help to have more precision in games designed for the iPhone 4 providing together with the accelerometer, a better analysis of 6-axis (up, down, left, right , front and back). 


The 'encore' presentation was the video call function between iPhones 4, named 'FaceTime' and available for now only via WiFi, works without any configuration and may make use of both houses of the iPhone. And finally the form of Microsoft, Bing, was added to the search engines to increase your options of three (Bing, Google and Yahoo). 

Apple iPhone 4 comes only in black, with capacities of 16 and 32 GB, available in the U.S., Germany, France, Japan and the United Kingdom on 24 June to 30 July in Spain in late September and will be available on A total of 88 countries, starting in July by Australia, Austria, Belgium, Canada, Denmark, Finland, Hong Kong, Ireland, Italy, Luxembourg, Netherlands, Norway, New Zealand, Singapore, South Korea, Spain, Sweden and Switzerland . White, apparently, causes problems with normal telephone operation, therefore, is experiencing significant delays in launching this version to market. 

The latest news about the new product from the Cupertino company pointed to a possible bug related to the antenna produced by the short circuit between the antenna signal responsible for Bluetooth, Wi-Fi and GPS signal responsible for UMTS and GSM. The iPhone 4 with version 4.0 of its operating system, represented in the bar chart coverage declined markedly and the cutting of the call in case you are doing it. 

This information was contradicted by Apple in their press conference on July 16 which stated that all phones, especially smartphones, suffer from a deficiency of receipt to cover the antenna, the iPhone 4 the same thing happens and therefore attributing the failure to antenna design is a globally widespread error, which caused great controversy in relation to sales ratio, the percentage of failures related and the degree of satisfaction of users of the brand. The situation led to the dismissal of the engineer responsible for designing the antenna and Apple finally recognizing that some of their phones had problems with the signal depending on how you held the phone, especially in areas of low coverage and offered until September 30 of 2010 to all owners of iPhone 4 a protective no cost through the program covers for the iPhone 4.


 Apple released the 4.1 version of IOS to try to correct the problem of GSM antenna reception.This patch only removes a problem of calibration of the way the coverage bars represent the reception of it, but did not solve the problem known as "antennagate." This failure is caused by the design of the phone and can not be solved by a software update. This was the reason why Apple decided to conduct a limited campaign (from July 23 to September 30, 2010) covers free shipping or refund money to those users who have bought one for his iPhone 4 (using a sleeve or guard prevents the user's fingers make contact with a GSM antenna chassis ground of the team that causes loss of signal).