HTC has released their new smartphone HTC One, which had been known earlier as HTC M7. The device was launched simultaneously in two launching events at London and New York. The highlight of the phone is its camera. The company calls it an 'Ultra Pixel' camera. The device packs an improved sound experience and a revamp of its Sense UI.It also brings a full HD display on a screen smaller than 5 inches, first time in the history of smartphones. The phone will be available both online and off line markets from March onwards. The price of the phone is not yet out.