The iPhone is a line of smartphones designed and marketed by Apple Inc. It runs Apple's iOS operating system and was first released in 2007. There have been several generations of iPhones released, each with improved hardware specifications like faster processors, better cameras, and larger screens. iPhones can make calls, send texts, access the internet, take photos and videos, and download third-party apps. However, Apple has faced legal battles over the iPhone trademark in some countries where it was already registered by other companies prior to Apple's use.

1. The iPhone is a line of smart phones designed and
marketed by Apple Inc.

2. iPhone 5s iPhone 5c

3.  The iPhone is a line of smartphones designed and
marketed by Apple Inc.
 It runs Apple's iOS mobile operating system.
 The first generation iPhone was released on June
29, 2007 the most recent iPhones, the seventh-
generation iPhone 5C and iPhone 5S, were
introduced on September 10, 2013.
 The user interface is built around the device's
multi-touch screen, including a virtual keyboard.

4.  The iPhone has Wi-Fi and cellular connectivity (2G,
3G, 4G, and LTE).
 An iPhone can shoot video (though this was not a
standard feature until the iPhone 3GS), take photos,
play music, send and receive email, browse the web,
send texts, and receive visual voicemail.
 Other functions — video games, reference works, GPS
navigation, social networking, etc.
 — can be enabled by downloading application
programs (‘apps’); as of October 2013, the App Store
offered more than 1 million apps by Apple and third
parties.

5.  There are six generations of iPhone models, each
accompanied by one of the six major releases of iOS.
The original 1st-generation iPhone was a GSM phone
and established design precedents, such as a button
placement that has persisted through all models and a
screen size maintained for the next four iterations. The
iPhone 3G added 3G cellular network capabilities and
A-GPS location. The iPhone 3GS added a faster
processor and a higher-resolution camera that could
record video at 480p. The iPhone 4 featured a higher-
resolution 960×640 "Retina Display", a VGA front-
facing camera for video calling and other apps, and a 5-
megapixel rear-facing camera with 720p video capture.

6.  The iPhone 4S upgrades to an 8-megapixel camera
with 1080p video recording, a dual-core A5 processor,
and a natural language voice control system called Siri.
iPhone 5 features the dual-core A6 processor, increases
the size of the Retina display to 4 inches, and replaces
the 30-pin connector with an all-digital Lightning
connector. As of 2013, the iPhone 3GS had the longest
production run, 1181 days; followed by the iPhone 4,
produced for 1174 days.

7. Release date
1st gen: June 29, 2007
3G: July 11, 2008
3GS: June 19, 2009
4: June 24, 2010
4S: October 14, 2011
5: September 21, 2012
5C and 5S: September 20, 2013
Units sold 250 million

8.  ower Built-in rechargeable Li-Po battery
1st gen: 3.7 V 5.18 W·h (1400 mA·h)
3G: 3.7 V 4.12 W·h (1150 mA·h)
3GS 3.7 V 4.51 W·h (1219 mA·h)
4: 3.7 V 5.25 W·h (1420 mA·h)
4S: 3.7 V 5.3 W·h (1432 mA·h)
5: 3.8 V 5.45 W·h (1440 mA·h)
5S: 3.8 V 5.92 W·h (1560 mA·h)

9.  System-on-chip used 1st gen:
3G:
3GS:
4: Apple A4
4S: Apple A5
5 and 5C: Apple A6
5S: Apple A7

10.  CPU 1st gen and 3G:
Samsung 32-bit RISC ARM 1176JZ(F)-S v1.0
3GS:
600 MHz ARM Cortex-A8
4:
800 MHz ARM Cortex-A8
4S:
800 MHz dual-core ARM Cortex-A9[6]
5:
1.3 GHz dual core Apple A6
 Storage capacity 4, 8, 16, 32, or 64 GB flash memory

12. Worldwide iPhone availability

13. IOS 7 Home Screen

14. Fights over brand name
Mexico
In 2003, four years before the iPhone was officially
introduced, the trademark iFone was registered in
Mexico by a communications systems and services
company, iFone. Apple tried to gain control over its
brandname, but a Mexican court refused the request.
The case began in 2009, when the Mexican firm sued
Apple.

15. Brazil
Also in Brazil the brand IPHONE has been registered in
2000 by the company then called Gradiente Eletrônica
S.A., now IGB Eletrônica S.A. According to the filing,
Gradiente foresaw the revolution in the convergence of
voice and data over the Internet at the time.

16.  In Brazil, the final battle over the brandname was finished
in 2008. In December 18, 2012, IGB launched its own line of
Android smartphones under the tradename to which it has
exclusive rights in the local market.In February 2013, the
Brazilian Patent and Trademark Office, (known as
"Instituto Nacional Da Propriedade Industrial") issued a
ruling that Gradiente Eletrônica, not Apple, owned the
“iPhone” mark in Brazil. The “iPhone” term was registered
by Gradiente in 2000, 7 years prior to Apple’s release of its
iPhone. This decision came 3 months after Gradiente
Eletrônica launched a lower-cost smartphone using the
iPhone brand.