The camera has been upped from 3.2 megapixels to 5 megapixels.The device also includes expandable memory, meaning users are able to insert their own micro SD cards, rather than relying on internal storage only, as with the original Diamond.[ref02] Increased power savings in Windows Mobile 6.1 have also been addressed at the launch of the HTC Diamond.

Thanks to tweaks in 6.1 in general plus HTC’s optimisations, the device DOES feel a lot slicker in use …The screen turns itself off when a person is on a call.This is to prevent the screen accepting unwanted inputs from the user's face when they are making a call, but it also requires the user to turn the screen back on if they want to use the screen.However, the buttons beneath the screen, as well as being pressable buttons, have capacitive touch sensitivity.This feature is used by the camera application to auto-focus the camera as a finger approaches to press the button that will take a picture.