Difference between Android 1.1 and Android 4.1

1. Android 1.1 :
Android 1.1 is the second version of Android which was introduced by Google after Android 1.0. It had all the features that were included in the previous version i.e. Android 1.0 and also some more features were added in this version. Some features were added in caller applications like hiding and showing of the numeric keyboard. The feature for saving MMS attachments was also added in this version. It also does not have the official version name like Android 1.0 but unofficially it is called Banana Bread. The API level in Android 1.1 is 2. It was released on 9 February 2009.

2. Android 4.1 :
Android 4.1 is next version of Android after Android 4.0.4 which was introduced by Google. Key user features like Google Now, voice search, speed enhancements, camera application improvements, accessibility, gesture mode and enable braille external keyboards were introduced in this version. Key developer features like app stack navigation, MediaActionSound class to make sounds like when a camera takes a photo, NFC supports large payloads over bluetooth, WIFI/WIFI-Direct service discovery and multi-action notifications were added in this version. Its version name is Jelly Bean. The API level in Android 4.1 is 16. It was released on 09 July 2012.

Difference between Android 1.1 and Android 4.1 :

S.No.	ANDROID 1.1	ANDROID 4.1
1.	It is the second version of Android.	It is the next version of Android after Android 4.0.4.
2.	It is successor to Android 1.0 version.	It is successor to Android 4.0.4 version.
3.	It is predecessor to Android 1.5 version.	It is predecessor to Android 4.1.1 version.
4.	It was released on 09 February 2009.	It was released on 09 July 2012.
5.	The API level in Android 1.1 version is 2.	The API level in Android 4.1 version is 16.
6.	It has 0 % android market share.	It has 1.2 % android market share.
7.	It does not have official version name like its successors.	It has official version name like its other previous versions.
8.	It has unofficial version name ‘Banana Bread’.	It has official version name ‘Jelly Bean’.
9.	It had all the features of previous version and two more features were added in this version.	It had all features of previous versions and some new key features were added in this version.
10.	It did not have voice search feature.	Voice search feature was added in this version.
11.	It had simple camera support.	Updated camera application improvements were done in this version.