Jelly Bean vs Ice Cream Sandwich
Jelly Bean 4.2, which was introduced in the year 2012 and Ice Cream Sandwich 4.0, which was introduced in the year 2011, are going to be in the frame of the discussion. There are similarities with some differences which will be listed.
The Ice Cream Sandwich 4.0 has a better UI and has allowed up to 5 pages in the home screen, and widgets can be placed anywhere in the pages. The unlock patterns are also changed with multiple unlock patterns that were introduced in 4.0. The Jelly Bean comes up with the facial recognizer which was an advantage and the pattern lock is also introduced in the 4.1.
The Ice Cream Sandwich 4.0 was the pioneer in the voice recognizer like the SIRI app in the iPhone which allowed the user to search through voice rather than typing and is also present in the 4.2.
There was a bit of a lag in response to the touch input in 4.0, which was corrected in the 4.2 which comes up with fast response touch and with a keypad which allows fast typing by the user.
The web browser in the 4.0 can support up to 16 tabs and it was enhanced in the 4.2 which allows multiple application switchable interfaces. The launcher in the 4.0 is also an updated launcher compared to the previous versions, and Google was the default search engine used in 4.0.
The camera atmosphere was also changed in the 4.2, which was ordinary in the 4.0. In 4.2 the panoramic view and 360-degree rotation of the lens made the snapshots as of in real world and the gallery was also redesigned in the 4.2, which named it as photo sphere which gave the gallery a new 3D experience.
The most important change in the 4.0 was the transfer of the application through NFC which was not available in the previous versions. The 4.2 version added multiple user accounts in tablet which allowed multiple user accounts, something which was not available in the 4.0.
The multiple language support was offered in the 4.2, which was not available in the 4.0, and the improved clock widget was available in the 4.2. The graphics was also high in the 4.2 compared to 4.0. The 4.2 had the HDMI mirroring support.
To summarize the discussion:
The 4.0 introduced facial recognizer and improved UI while the 4.2 has various lock screens
The touch was slow in 4.0 compared to 4.2
The fast typing keypad was in 4.2
The panoramic view and photo sphere of 4.2 was not available in 4.0
The multi language support was in 4.2
The 4.0 web browser can support up to 32 tabs