The HTC One M8 comes with a a 5 inch display that has a full HD resolution of 1920 x 1080 pixels, the HTC One Mini 2 features a 4.5 inch HD display with a resolution of 1280 x 720 pixels.
Both devices is powered by Qualcomm Snapdragon processors, the HTC One Mini 2 features a quad core 1.2GHz Snapdragon 400 and the HTC One M8 comes with a quad core 2.3GHz Snapdragon 801 processor.
The HRC One M8 comes with 2GB of RAM and the HTC One Mini 2 features 1GB of RAM, both devices come with 16GB of storage and a microSD card slot which supports 128GB cards.
The HTC One Mini 2 and HTC One M8 come with Android 4.4. Kit Kat and HTC Sense 6.0, the One Mini 2 has a 5 megapixel front camera and a 13 megapixel rear camera.
The One M8 features a 5 megapixel front facing camera, and dual HTC Ultrapixel cameras on the back of the device, have a look at the video of the two handsets side by side.
Source Pocket Now