Difference between Android 1.0 and Android 5.1

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 5.1 :
Android 5.1 is the next version of Android after Android 5.0.2 which was introduced by Google. It has all the features of its previous versions and some new user features were added in this version. Key user features like multiple SIM cards support, quick settings shortcuts to join Wi-Fi networks or control bluetooth devices, lock protection if lost or stolen and high definition voice call were added in this version. Stability and performance enhancements were done in this version. Its version name is Lollipop. The API level in Android 5.1 is 22. It was released on 09 March 2015.



Difference between Android 1.0 and Android 5.1 :

S.No. ANDROID 1.0 ANDROID 5.1
1. It is the first version of Android. It is the next version of Android after Android 5.0.2.
2. It is predecessor to Android 1.1. It is predecessor to Android 5.1.1 and successor to Android 5.0.2.
3. It was released on 23 September 2008. It was released on 09 March 2015.
4. The API level in Android 1.0 version is 1. The API level in Android 5.1 version is 22.
5. It has 0 % android market share. It has 11.5 % android market share.
6. It does not have official version name. It has official version name like its other previous versions.
7. It has unofficial version name ‘Apple Pie’. It has official version name ‘Lollipop’.
8. It had limited basic features like google maps, gmail, web browser, camera and youtube. It had all features of previous versions and some new user features were added in this version.
9. It had single SIM card support. Multiple SIM cards support was added in this version.
10. It had poor performance and less stability. Stability and performance was enhanced in this version.
11. It had standard voice call. High definition voice call was introduced in this version.

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