• The Apple iPhone is a bar style cell phone that combines the technology of the company's iPod mp3 player with the usefulness of a handset. As of late 2010, the iPhone 4 is the newest version. The iPhone 4 features a touch sensitive screen uses a SIM card and GSM technology.
  
  

Size

• The iPhone 4 measures 4.5 inches tall, 2.31 inches wide and 0.37 inches thick. The phone weighs 4.8 ounces and has a display screen that is 3.5 inches diagonally.
  
  

Calling and Battery Technology

• The iPhone features a lithium ion battery that lasts for up to seven hours of usage on a 3G network and 14 hours of usage on a 2G network. For calling, the phone uses the 850, 900, 1800 and 1900 GSM frequencies. While connecting through 3G, the phone uses the 850, 900, 1900 and 2100 HDSPA frequencies.
  
  

Storage

• The iPhone 4 has room for nearly unlimited amount of phone book entries and messages. The phone stores the previous 100 received, missed and dialed numbers. Time and date information is also listed. The phone is available with either 16 or 32 gigabytes of storage space and has 512 megabytes of RAM for fluid usage, but no memory card slot is included.
  
  

Internet

• The iPhone 4 connects to 3G at a maximum speed of 7.2 megabytes per second. When connected to a 2G network, the phone's maximum speed is 48 kilobytes per second. The phone also connects to Wi-Fi networks and has Bluetooth 2.1 for media sharing and headset usage.
  
  

Media

• The iPhone 4 has a media player to watch videos and listen to music. The media player allows for editing of audio and video files as well. Songs can be purchased through the phone or transferred from a computer using the USB 2.0 port. A 5.0 megapixel camera with auto focus and a LED flash is also included. All images display at a resolution of 2592 pixels by 1944 pixels.