1. 安卓 1.1：
Android 1.1 是继Android 1.0 之后Google 推出的第二个Android 版本。它具有以前版本(即 Android 1.0)中包含的所有功能，并且在此版本中还添加了更多功能。在呼叫者应用程序中添加了一些功能，例如隐藏和显示数字键盘。此版本还增加了保存彩信附件的功能。它也没有像 Android 1.0 那样的正式版本名称，但非正式地称为Banana Bread 。 Android 1.1 中的 API 级别为 2。它于 2009 年 2 月 9 日发布。
2. 安卓 3.0：
Android 3.0 是继 Google 推出的“Gingerbread”之后的下一个 Android 版本。此版本引入了新的用户功能，如多核支持、更好的平板电脑支持、更新的 3D UI、媒体传输协议、隐私浏览、HTTP 实时流媒体和 Google 电子书。新的开发人员功能，如上下文操作栏、首次引入的片段、硬件加速 2D 图形、renderscript 3D 图形引擎、可插拔 DRM 框架、设备管理、高性能动画框架、RTP 流 API、强制渲染层、高性能 WIFI 锁定、ADTS此版本中添加了 AAC 和 FLAC 音频和 LRU 缓存。它的版本名称是Honeycomb 。 Android 3.0 中的 API 级别为 11。它于 2011 年 2 月 22 日发布。
Android 1.1 和 Android 3.0 的区别：
| S.No. | ANDROID 1.1 | ANDROID 3.0 |
|---|---|---|
| 1. | It is the second version of Android. | It is the next version of Android after ‘Gingerbread’. |
| 2. | It is predecessor to Android 1.5 version. | It is predecessor to Android 3.1 version. |
| 3. | It was released on 09 February 2009. | It was released on 22 February 2011. |
| 4. | The API level in Android 1.1 version is 2. | The API level in Android 3.0 version is 11. |
| 5. | It does not have official version name like its successors. | It has official version name like its other previous versions. |
| 6. | It has unofficial version name ‘Banana Bread’. | It has official version name ‘Honeycomb’. |
| 7. | It had all the features of previous version and two more features were added in this version. | It had all features of previous versions and some new user and developer features were added in this version. |
| 8. | It did not have developer features. | Major developer features were added in this version. |
| 9. | It had simple user interface. | Updated 3D user interface was introduced in this version. |
| 10. | It did not have private browsing. | Private browsing was added in this version. |