Difference between Android 1.0 and Android 1.5

1. Android 1.0 :
Android 1.0 is the very first version of Android which was introduced by Google. It had some basic features including web browser support, camera support, Gmail accounts, Google maps and Youtube application. Although it does not have the official version name like further introduces versions but unofficially it is called Apple Pie. The API level in Android 1.0 version is 1. It is not used anymore in the mobile devices. It was released on 23 September 2008.

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 1.0 and Android 1.5 :

S.No.	ANDROID 1.0	ANDROID 1.5
1.	It is the first version of Android.	It is the third version of Android.
2.	It is predecessor to Android 1.1.	It is predecessor to Android 1.6 and successor to Android 1.1.
3.	It was released on 23 September 2008.	It was released on 30 April 2009.
4.	The API level in Android 1.0 version is 1.	The API level in Android 1.5 version is 3.
5.	It is not used anymore in mobile devices.	It is also not used anymore.
6.	It does not have official version name.	It has official version name. It was the very first version to have version name.
7.	It has unofficial version name ‘Apple Pie’.	It has official version name ‘Cupcake’.
8.	It had limited features like google maps, gmail, web browser, camera and youtube.	It had all the features of Android 1.0 and Android 1.1 and some more features were added.
9.	It had numeric key-board but hard one.	Soft key-board with text prediction was introduced in it.
10.	It did not provide video related features.	Feature for watching and recording video was included in this version.
11.	It did not have Bluetooth connectivity.	Bluetooth connectivity feature was added in this version.