Android 4 mobile phones

Android 4.0 (Ice Cream Sandwich) is the latest version of the Android platform by Google. Android 4 is designed for phones, tablets, and more. Android 4 - rich notifications, customizable home screens, easy multitasking, resizable widgets, and deep interactivity — and adds powerful new ways of communicating and sharing.

Ice Cream Sandwich is a single system for both tablets and for mobile. The whole interface will gradually rearrange according to the current resolution / pixel density per square inch. Ice Cream Sandwich looks the same on the tablet and mobile phones.


Android 4.0.1

The SDK for Android 4.0.1 was publicly released on 19 October 2011. Google's Gabe Cohen stated that Android 4.0 was "theoretically compatible" with any Android 2.3.x device in production at that time. The source code for Android 4.0 became available on 14 November 2011.


Android 4.0.2

The Android 4.0.2 update was released on 28 November 2011, and fixed minor bugs on the Verizon Galaxy Nexus, the US launch of which was later delayed until December 2011. For Canadian consumers, 4.0.2 reportedly created a bug on the Galaxy Nexus that crashed the application market when users attempted to view details of any Android application. It also inadvertently reduced the NFC capabilities of the Nexus phone.


Android 4.0.3

The Android 4.0.3 update was first released on 16 December 2011. It included a number of bug fixes and optimizations, and offered improvements to graphics, databases, spell-checking and Bluetooth functionality, along with new APIs for developers, including a social stream API in the Contacts provider. Other features included Calendar provider enhancements, new camera apps enhancing video stabilization and QVGA resolution, and accessibility refinements such as improved content access for screen readers. Google stated that they would "be focusing our partners on Android 4.0.3 as the base version of Ice Cream Sandwich".


Android 4 phones:


New features included:
  • 1080p video recording for stock Android devices
  • A new typeface family for the UI, Roboto
  • Ability to access apps directly from lock screen (similar to HTC Sense 3.x)
  • Ability to shut down apps that are using data in the background
  • Ability to swipe left or right to switch between Gmail conversations
  • Android Beam, a near-field communication feature allowing the rapid short-range exchange of web bookmarks, contact info, directions, YouTube videos and other data
  • Better voice integration and continuous, real-time speech to text dictation
  • Built-in photo editor
  • Enhanced speed and performance
  • Virtual buttons in the UI, in place of capacitive or physical buttons
  • Separation of widgets in a new tab, listed in a similar manner to apps
  • Easier-to-create folders, with a drag-and-drop style
  • A customizable launcher
  • Improved visual voicemail with the ability to speed up or slow down voicemail messages
  • Pinch-to-zoom functionality in the calendar
  • Offline search, a two-line preview, and new action bar at the bottom of the Gmail app
  • Improved error correction on the keyboard
  • Integrated screenshot capture (accomplished by holding down the Power and Volume-Down buttons)
  • Improved copy and paste functionality
  • Face Unlock, a feature that allows users to unlock handsets using facial recognition software
  • New tabbed web browser, allowing up to 16 tabs
  • Automatic syncing of browser with users' Chrome bookmarks
  • Data Usage section in settings that lets users set warnings when they approach a certain usage limit, and disable data use when the limit is exceeded
  • Improved camera app with zero shutter lag, time lapse settings, panorama mode, and the ability to zoom while recording
  • New gallery layout, organized by location and person
  • Refreshed "People" app with social network integration, status updates and hi-res images
  • Hardware acceleration of the UI
  • Wi-Fi Direct
Source: Official Android page: Android.com, Wikipedia.org.