Along with HTC Desire HD, HTC also releases another high-end smart phone call Desire Z. Desire Z does not have as advanced specs as Desire HD. It is more likely to be designed for business use where busy business persons can use it with convenience. Putting together with a 3.7 inches WVGA touched screen as well as an automatically slide-out full QWERTY keyboard.

The vivid color touched screen is made with SLCD display, which is comparable with AMOLED display. Surrounding the screen is a metal material frame to add a professional appearance. Just like Desire HD, HTC Desire Z can also record 720p HD video. It correspondingly equipped with a 5.0MP auto-focus camera with flash capability. Desire Z is the first phone that uses 800MHz Qualcomm 7230 CPU. This processor provides better efficiency and battery life for the phone. Maps applications are often loaded slowly on smartphones. With the enhanced Locations widget, Desire Z delivers maps with zero wait, zero dead spots and zero data roaming fees with its internal GPS antenna.

HTC Desire Z also upgraded its operating system to Android 2.2 Froyo. With Froyo, users can now view Flash websites and play Flash games through their smartphones. Froyo also includes HTC Fast Boot. HTC Fast Boot allows the start-up time of the phone reduce to within five seconds. Last but not least, HTCSense.com is launched along with the release of Desire HD and Desire Z. HTCSense.com is a place to easily manage the smartphone through personal computers.

The HTC A7275 Desire NAM 3G built with North American Model (NAM) 3G HSDPA 850 / 1900 MHz which will compatible with US or Canada HSPA Network.