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Essentials REMOVEiPhone REMOVEiPhone 4
Image
Family iOS iOS
Codename iphone ?
Minimum OS iPhone OS 1.0 iOS 4.0
Maximum OS iPhone OS 3.1.2 iOS 7.0.4
Announced January 2007  
Introduced June 2007 June 2010
Terminated June 2008 September 2013
Processor REMOVEiPhone REMOVEiPhone 4
CPU Samsung S3C6400 (ARM11 core) Apple A4 (ARM Cortex-A8)
CPU Speed 400 MHz 800 MHz
FPU integrated integrated
Bus Speed 100 MHz ?
Register Width 32-bit 32-bit
Data Bus Width 32-bit 64-bit
Address Bus Width 32-bit 32-bit
Level 1 Cache 16 kB data, 16 kB instruction 32 kB data, 32 kB instruction
Onboard RAM 128 MB 512 MB
Maximum RAM 128 MB 512 MB
Level 2 Cache   512 kB on-processor
Video REMOVEiPhone REMOVEiPhone 4
Screen 3.5" multi-touch 3.5" multi-touch
GPU PowerVR MBX-Lite PowerVR SGX 535 (via A4)
Max Resolution 480x320 960x640 ("Retina")
Video Out composite, component (via Dock Connector) composite, component, VGA (via Dock Connector adaptors)
Camera 2MP 5 MP back (w/LED flash), VGA front
Storage REMOVEiPhone REMOVEiPhone 4
Flash Drive 4/8/16 GB 16/32 GB
Input/Output REMOVEiPhone REMOVEiPhone 4
USB via Dock Connector via Dock Connector
Audio Out stereo 16 bit mini stereo 16 bit mini
Speaker mono mono
Microphone mono mono
Sensors Accelerometer, Proximity sensor, Ambient light sensor Accelerometer, Proximity sensor, Ambient light sensor, Three-axis gyro
Networking REMOVEiPhone REMOVEiPhone 4
Wi-Fi 802.11b/g 802.11b/g/n
Bluetooth 2.0+EDR 2.1+EDR
Cellular GSM/EDGE (850, 900, 1800, 1900 MHz)

  • GSM/EDGE (850, 900, 1800, 1900 MHz)
  • UMTS/HSDPA (3.6 & 7.2 Mbps) (850, 900, 1900, 2100 MHz)

Location Assisted GPS (EDGE + WiFi) GPS, Digital Compass
Miscellaneous REMOVEiPhone REMOVEiPhone 4
Battery Life

  • Talk 8 hrs
  • Standby 250 hrs
  • Internet 6 hrs
  • Video 7 hrs
  • Audio 24 hrs

  • Talk 7 hrs (3G)/14 hrs (EDGE)
  • Standby 300 hrs
  • Internet 6 hrs (3G)/10 hrs (Wi-Fi)
  • Video 10 hrs
  • Audio 40 hrs

Dimensions 4.5" H x 2.4" W x 0.46" D 4.5" H x 2.31" W x 0.37" D
Weight 0.3 lbs. 0.3 lbs.
Description Announced in January 2007 and released the following June, the iPhone marked Apple's entry into the cellular phone marketplace. Described by Steve Jobs as "a wide-screen iPod with hand controls... a revolutionary mobile phone... [and] a breakthrough Internet communications device," the iPhone was the first Apple-branded consumer device to run on OS X. Based around a touch-based user interface with a single button, the iPhone was controlled using a variety of one- and two-finger gestured. It included a custom version of Safari that allowed full browsing of any web page, a revamped iPod interface with CoverFlow, integrated access to YouTube and Google Maps, an iChat-like SMS text-messaging interface (iChat itself was missing from the initial release), and a standard set of cellphone apps, such as a calendar, an address book and a calculator.

The iPhone was available exclusively with AT&T voice/data plans, and was limited to EDGE-based network access, rather than the faster 3G wireless networking standard. This was mitigated somewhat by an integrated 802.11g WiFi chipset, which allowed for faster browsing on any available WiFi network.

Though the iPhone officially only supported web-based applications from third-party developers, an underground development effort was quickly organized, and within a few months native 3rd party applications were widely available. Warantee-breaking hardware modifications to "unlock" the iPhone from the AT&T network were also uncovered. The iPhone was sold in two configurations: a 4 GB model sold for $499, and an 8 GB model for $599. In September 2007, Apple discontinued the 4 GB model, and dropped the price of the 8 GB model to $399 (a $100 Apple Store credit was offered to angry early adopters). In February 2008, a $499 16 GB model was added. All models were discontinued in June 2008, with the release of the iPhone 3G.

Introduced in June 2010, the iPhone 4 replaced the iPhone 3GS, and included the same Apple-designed A4 processor found in the iPad. External improvements included a slimmer, redesigned case, a 5 megapixel camera with LED flash, a VGA-quality front-facing camera, and a stunning new 960x640 LED-backlit display. Apple claimed that the new display, branded the "Retina display," was so high-resolution that at at standard reading distances, the human eye would be unable to distinguish individual pixels.

Under-the-hood improvements included the afore-mentiond A4 processor, a faster graphics subsystem, improved battery life, and a 3-axis gyroscope which, when combined with the existing accelerometer, provided 6-axis motion detection. The iPhone 4 included the newly re-branded iOS 4.0, which brought a number of improvements, including multitasking and folders. In addition, the iPhone 4 included a new video calling feature, called "FaceTime," and the capability for 720p 30 fps HD video recording and editing.

The iPhone 4 was sold in two models, keeping the same price-points as the iPhone 3GS the year before: a black 16 GB model for $199, and white or black 32 GB models for $299, including a 2-year contract. Due to manufacturing and quality problems, the white iPhone did not ship until April of 2011. In October 2011, with the introduction of the iPhone 4S all models were replaced with a single 8 GB model (in white or black), for $99 with a 2-year contract (for AT&T or Sprint), or $549 without. In September 2012, the subsidized price was dropped to zero. The iPhone 4 was discontinued in September 2013.

Picture Credit Apple, Inc. Apple, Inc.