Difference between Android 1.1 and Android 1.5

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 1.5 :
Android 1.5 is the third version and next version of Android after Android 1.1 which was introduced by Google. It had all the features that were included in the previous versions i.e. Android 1.0 and Android 1.1 and also some extra features were added in this version. Feature like Bluetooth connectivity was added and features for video watching and recording was also added in this version. This was the first version which had a version name. It is called Cupcake. The API level in Android 1.5 is 3. It was released on 30 April 2009.

Difference between Android 1.1 and Android 1.5 :

S.No.	ANDROID 1.1	ANDROID 1.5
1.	It is the second version of Android.	It is the third version of Android.
2.	It is successor to Android 1.0 version.	It is successor to Android 1.1 version.
3.	It is predecessor to Android 1.5.	It is predecessor to Android 1.6.
4.	It was released on 9 February 2009.	It was released on 30 April 2009.
5.	The API level in Android 1.1 version is 2.	The API level in Android 1.5 version is 3.
6.	It does not have official version name like its successors.	It has official version name. It was the first version to have official version name.
7.	It has unofficial version name ‘Banana Bread’.	It has official version name ‘Cupcake’.
8.	It had all the features of previous version and two more features were added in this version.	It has all the features of Android 1.0 and Android 1.1 and several more features were added in this version.
9.	Ability to show and hide numeric key-board was introduced in this version.	Soft key-board with text prediction was introduced in this version.
10.	Feature for saving MMS attachments was added in this version.	Feature for watching and recording video was included in this version.
11.	It did not have bluetooth connectivity.	Bluetooth connectivity was introduced in this version.