The HTC Amaze 4G is a 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...

 developed by the HTC Corporation. It was released by T-Mobile

T-Mobile

T-Mobile International AG is a German-based holding company for Deutsche Telekom AG's various mobile communications subsidiaries outside Germany. Based in Bonn, Germany, its subsidiaries operate GSM and UMTS-based cellular networks in Europe, the United States, Puerto Rico and the US Virgin Islands...

 in the United States on 10 October 2011.. It was first released in Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 by Telus

TELUS

Telus is a national telecommunications company in Canada that provides a wide range of telecommunications products and services including internet access, voice, entertainment, video, and satellite television. The company is based in Burnaby, British Columbia, part of Greater Vancouver...

 on 04 November 2011. Subsequently, other Canadian carriers like Mobilicity

Mobilicity

Mobilicity is a Canadian wireless telecommunications provider. Its name is a portmanteau of the words "mobility" and "simplicity".-History:...

 and WIND Mobile

Wind Mobile

Wind Mobile is a Canadian wireless telecommunications provider operated by Globalive Communications Corporation. The company initially launched mobile data and voice services in Toronto on December 16, 2009 and two days later in Calgary...

 have released this phone on 1 December 2011 and 2 December 2011 respectively. The HTC Amaze 4G runs the Android operating system, version 2.3.4 “Gingerbread”.