As per specs, HTC One (M8) flaunts a 5.0-inch full HD display screen with Corning Gorilla glass protection with screen resolution of 1920 x 1080 pixels, under the hood its powered by a 2.5 GHz / 2.3 GHz quad-core Qualcomm Snapdragon 801 processor (depending on market) along with 2 GB of RAM as per software it runs on Android 4.4 KitKat wrapped with new HTC Sense 6.0 UI.
At back it has Duo camera with primary UltraPixel camera has 1/3″ BSI sensor, f/2.0 aperture, 28mm lens, pixel size of 2.0 microns and a secondary rear camera can capture depth information. camera is paired with dual LED flash which automatically selects the intensity for you. At front it has 5-megapixel front-facing camera with 1080p and HDR capability, f/2.0 aperture, and BSI sensor.
As we had seen in original HTC One, the HTC One (M8) has Dual font-facing stereo speakers with built-in amplifiers and HTC BoomSound.
HTC One (M8) 90 percentage body is made of metal with curved finish. It houses a 2600 mAh battery which can lasts 40% longer if we compared it with HTC One.