Htc One ( M8 eye ) is by far the best phone I have used. I have been using the M8 for about a year now after it was launched in 2014. The phone looks great with the all metal body and gives you a premium class feel in hand. It comes with a 5 touch display, 2gb of RAM which is perfect for all my essentials and a 2600mAH Li-Po non-removable battery. The device comes with OS v4.4.4 ( Kitkat) and can be upgraded to the latest version v6.0.1 ( Marshmallow) . With 2gb RAM and 16gb Internal memory a dedicated card slot with microSD up to 256gb is supported. The camera is the best feature of the M8 eye, the Dual 13MP, f/2.0 camera does a beautiful job in all conditions. Overall this device is a perfect device with most of the present day features on it.