Difference between Android 1.1 and Android 4.1.2

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 4.1.2 :
Android 4.1.2 is next version of Android after Android 4.1.1 which was introduced by Google. It has all the features of its previous versions and some new features were added and some bugs were fixed in this version. Key user feature like home screen rotation was introduced in this version. Various bugs were fixed in this version and performance was enhanced. No new developer feature was added in this version. Its version name is Jelly Bean. The API level in Android 4.1.2 is 16. It was released on 09 October 2012.

Difference between Android 1.1 and Android 4.1.2 :

S.No.	ANDROID 1.1	ANDROID 4.1.2
1.	It is the second version of Android.	It is the next version of Android after Android 4.1.1.
2.	It is successor to Android 1.0 version.	It is successor to Android 4.1.1 version.
3.	It is predecessor to Android 1.5 version.	It is predecessor to Android 4.2 version.
4.	It was released on 09 February 2009.	It was released on 09 October 2012.
5.	The API level in Android 1.1 version is 2.	The API level in Android 4.1.2 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 feature were added and improvements were made in this version.
10.	It had several bugs hence it had low performance.	Several bugs were fixed in this version to enhance the performance.
11.	It did not have home screen rotation feature.	Home screen rotation feature was introduced in this version.