1. 安卓 1.0：
Android 1.0 是 Google 推出的第一个 Android 版本。它有一些基本功能，包括网络浏览器支持、相机支持、Gmail 帐户、谷歌地图和 Youtube 应用程序。虽然它没有像进一步介绍版本那样的正式版本名称，但非正式地称为Apple Pie 。 Android 1.0 版本的 API 级别为 1。在移动设备中不再使用它。它于2008年9月23日发布。
2. 安卓 7.0：
Android 7.0 是继 Google 推出的 Android 6.0.1 之后的下一个 Android 版本。它具有以前版本的所有功能，并且在此版本中还添加了一些新的用户和开发人员功能。此版本添加了 unicode 9.0 表情符号、更好的多任务处理、多窗口模式(PIP、自由格式窗口)、无缝系统更新和更好的性能等关键用户功能。此版本引入了关键开发人员功能，如持续性能模式 API、vulkan 3D 渲染 API 和 daydream 虚拟现实平台。它的版本名称是Nougat 。 Android 7.0 中的 API 级别为 24。它于 2016 年 8 月 22 日发布。
Android 1.0 和 Android 7.0 的区别：
| S.No. | ANDROID 1.0 | ANDROID 7.0 |
|---|---|---|
| 1. | It is the first version of Android. | It is the next version of Android after Android 6.0.1. |
| 2. | It is predecessor to Android 1.1. | It is predecessor to Android 7.1 and successor to Android 6.0.1. |
| 3. | It was released on 23 September 2008. | It was released on 22 August 2016. |
| 4. | The API level in Android 1.0 version is 1. | The API level in Android 7.0 version is 24. |
| 5. | It has 0 % android market share. | It has 11.4 % 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 ‘Nougat’. |
| 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 and developer features were added in this version. |
| 9. | It did not have multi-window mode. | Multi-window mode was introduced in this version. |
| 10. | It did not have emojis. | Unicode 9.0 emoji was added in this version. |
| 11. | It did not have developer features. | Various developer features like daydream virtual reality platform etc. were added in this version. |