The Optimus Chat is an entry-level, touch-screen smartphone

Smartphone

A smartphone is a high-end mobile phone built on a mobile computing platform, with more advanced computing ability and connectivity than a contemporary feature phone. The first smartphones were devices that mainly combined the functions of a personal digital assistant and a mobile phone or camera...

 with keyboard manufactured by LG Electronics, Inc.

LG Electronics

LG Electronics is a global electronics and telecommunications company headquartered in Yeouido, Seoul, South Korea. The company operates its business through five divisions: mobile communications, home entertainment, home appliance, air conditioning and business solution...

 While it is very similar to the LG Optimus One

LG Optimus One

The Optimus One with Google is a family of entry-level, touch-screen smartphones manufactured by LG Electronics, Inc. Initially released running the Android 2.2 Froyo software stack, LG plans to release software to upgrade the many variants to Android 2.3 Gingerbread...

, the main difference is that it includes a smaller touch screen (2.8-inch instead of 3.2-inch) but has a slide-out keyboard instead. It is currently running the Android 2.2 Froyo software stack but may run Android 2.3 Gingerbread.

See also

• List of Android devices
• Comparison of smartphones
  Comparison of smartphones
  -Hardware and OS:-Networks and connectivity:...
  
  
• Comparison of Android devices