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Smartphone is a mobile phone that has the operating system to the wider community, where users can freely add applications, add or change functions as the user desires. Development of the smartphone now also has reached the stage grouping of the operating system. Various smartphone operating systems like Symbian, Windows Mobile, BlackBerry, Palm, Maemo, Linux and IOS. Here I will discuss one of the Smartphone from Samsung is Apple iPhone 4. Apple iPhone 4 weighs 137 g and dimensions of 115.2 x 58.6 x 9.3 mm, the processor is 1 GHz Cortex-A8 and 512 MB RAM. Apple iPhone 4 using the operating system iPhone OS 4, upgradable to iOS 5.1. If you already have a Apple iPhone 4 you can download the user manual guide free online. Apple iPhone 4 manual user guide PDF file format with large 5 MB and 100 pages. To see more clearly the Apple iPhone 4 the specification can be seen below:





Apple iPhone 4 specification:

• Size: 115.5 X 62.1 X 12.3    
• Weight: 135 G
• Display Color: 3.5 INCHES, TFT CAPACITIVE TOUCHSCREEN, 16M COLORS    
• Form Factor: Bar
• Talk Time: Up To 12 Hours (2g) / Up To 5 Hours (3g)    
• Standby Time: Up To 300 Hours
• Operating Frequency: GSM 850 / 900 / 1800 / 1900 / HSDPA 850 / 1900 / 2100 MHZ

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