The HTC One M9 measures 5.69 x 2.74 x 0.38 inches and weighs 5.45 ounces. It has a dual tone all metal body with mirrored edges which taper to ensure a good grip. The unibody rear of the device is curved to provide a streamlined look. Available in three eye-catching colours, Gold on Gold, Gold on Silver and Gunmetal Grey, all feature a polished dual tone look. The device has front facing BoomSound speakers with a built in amplifier to provide high quality sound.