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| The first iPhone launched in 2007. |
The Original iPhone:
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| Steve Jobs at the launch of the first iPhone. |
The first iPhone had a plastic-metal case and used 2G networks.It featured a 3.5 inch multi-touch capacitive touchscreen with a 320x480 pixel resolution.It was available in 3 variants 4,8 and 16GB.It had a 2MP camera and 128MB of RAM.It also featured an accelerometer,proximity sensor and ambient light sensor.It had bluetooth 2.0 and Wi-Fi.The CPU was clocked at 412 Mhz.Apple sold a million of these phones within five days of launch.It was 11.6 mm thick and weighed 135g.
The iPhone 3G:
The iPhone 3G retained the screen,camera,RAM and CPU from the Original iPhone but added features such as Assisted-GPS along with 3G data.It was available in 2 variants-8 and 16GB and runs on iOS 4.2.1.The phone also featured the newer iOS 2.0.It had bluetooth 2.0 with Wi-Fi.The case was entirely made of plastic unlike its predecessor.Apple sold a million units over the first weekend of launch.It was 12.3mm thick and weighed 133g.
The iPhone 3GS:
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| The iPhone 3GS |
The iPhone 4:
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| iPhone 4 |
The iPhone 3GS was succeeded a year later by the iPhone 4.Unlike its predecessors it had a stainless steel frame which served as the device's antenna.It had an Apple A4 processor clocked at 1Ghz and 512MB of RAM.It was available in 8,16 and 32GB variants.The display underwent a major upgrade and now featured a LED backlit LCD display with 960x640 resolution called the "Retina Display".It had a gyroscope which gives precise information about the device's movement in space when combined with the accelerometer.It also featured a front facing camera for video calls and a 5MP rear facing camera with LED flash and HD video recording capability.It was 9.3mm thick and weighs 137g.
The iPhone 4S:
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| The iPhone 4S: |
The iPhone 5:
Its the latest offering from Apple,featuring a faster processor and a bigger screen for the first time since the original iPhone.It has a 4 inch screen with 640x1,136 resolution with an 16:9 aspect ratio.It runs on iOS 6.0 and is available in 3 variants-16,32 and 64 GB.It has an improved front facing camera and is only 7.6mm thick with a weight of 112g.its powered by an apple A6 SoC and RAM has been upgraded to 1GB.Newer features include 4G(LTE)data connection and smaller dock connector.
Conclusion:
The iPhone has revolutionized the world of smartphones by seamlessly integrating mobile communication and mobile entertainment into a single sleek device wherein the software compliments the hardware.It also introduced uniformity in devices based on a single platform.Finally,the iPhone might not be the greatest phone but its certainly the phone which has challenged and changed the mobile computing industry in recent times.






