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 counts, 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 1.6 :
Android 1.6 is next version of Android after Android 1.5 which was introduced by Google. It had all the features that were included in the previous versions i.e. Android 1.0, Android 1.1 and Android 1.5 and some extra features were added in this version too. Features like gesture framework and turn-by-turn navigation was added in this version. This version had a version name. It is called Donut. The API level in Android 1.6 is 4. It was released on 15 September 2009.
Difference between Android 1.0 and Android 1.6 :
|S.No.||ANDROID 1.0||ANDROID 1.6|
|1.||It is the first version of Android.||It is the fourth version of Android introduced after Android 1.0, Android 1.1 and Android 1.5.|
|2.||It is predecessor to Android 1.1.||It is predecessor to Android 2.0 and successor to Android 1.5.|
|3.||It was released on 23 September 2008.||It was released on 15 September 2009.|
|4.||The API level in Android 1.0 version is 1.||The API level in Android 1.6 version is 4.|
|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 like its previous version Android 1.5.|
|7.||It has unofficial version name ‘Apple Pie’.||It has official version name ‘Donut’.|
|8.||It had limited features like google maps, gmail, web browser, camera and youtube.||It had all the features of Android 1.0, Android 1.1 and Android 1.5 and some more features were added.|
|9.||It did not have gesture framework.||Gesture framework was introduced in this version.|
|10.||It did not provide turn-by-turn navigation.||Feature like turn-by-turn navigation was added in this version.|
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