The device is listed at Rs 17,999 without the exchange offer. To avail the scheme, the customers will first have to tell about the old phone in the Exchange Offer form as it is valid on select devices only.

The customers will than have to check with the pincode if the Exchange Offer is available in his or her location.

Once the Order is placed, the new phone will be shipped and the customer will have to hand in the old phone in working condition to the field executive.

The iPhone 4S comes with a 3.5-inch, 960 x 640-pixel widescreen multi-touch retina display. It is powered by a dual-core A5 chip processor and sports the new iOS 5 operating system, which the company claims offers faster web browsing and enhanced gaming experiences.

Its 8-MP camera has a larger aperture, a custom lens, advanced hybrid infrared filter and face detection feature. Users can record videos in 1080p HD and also use the front facing VGA camera for video chatting.
Another interesting feature is the voice-activated personal assistant, Siri. The user can ask Siri for a plethora of information by voice, such as the location of the nearest restaurant, and it will provide an answer. Siri can also be used to make phone calls, send messages, schedule meetings and set reminders, among other things.

Key specifications

3.5-inch Capacitive Touchscreen
8 MP Primary Camera
0.3 MP Secondary Camera
8 GB Internal Memory
Full HD Recording
Wi-Fi Enabled
Bluetooth Support