The HTC HD mini aka HTC T555 is a Gsm Quadband HSDPA Dualband Smartphone with a tft captive touchscreen that has 65k color 3.2 inch screen. It has built in sense UI, Multi-Touch support, Accelerometer sensor for auto rotation, proximity sensor for auto turn off and pick to mute.

HD Mini has 384 mb of internal memory it's microSD memory card slot let you add up to 32 gb of memory. for web surfing e-mailing texting and data transfer you get gprs, edge, 3G (where available), wifi, bluetooth and usb. It has a 5Mp camera with autofocus. The operating system on this mobile is Microsoft Windows Mobile 6.5.3 professional the cpu is qualcomm 7227 600 mhz processor.

Other features include stereo fm radio, Mp3, Mp4 players, pocket office (word, excel, powerpoint, onenote, pdf viewer), Facebook, twitter integration, youtube client, & more.

The standard battery lets you talk up to 6 hours and 40 mins on 2G and 7 hours and 15 mins of 3G you can get about 12 hours of music play.