HTC One was announced back in February at MWC Barcelona. It combines stunning design (as usual uni-body construction), a supreme screen and faster CPU to offer one of the best Smartphone experience. It features a 4.7-inch Super LCD 3 display of 1080x1920 pixels resolution (that’s 469ppi)-well above what’s needed for the human eye to discern. The contrast of the display is impressive and the viewing angles are extremely wide-there’s no shift in colors.
The HTC One is powered by the latest Qualcomm Snapdragon S600 chipset utilizing a quad-core 1.7GHz krait 300 processor, Aderno 320 graphics and 2GB RAM which will be more than enough for day to day and intensive tasks.
HTC One comes with a camera that’s unique in the world of Smartphone. I think HTC decided to go with something innovative rather than usual megapixel race. It’s only the second smartphone to feature optical image stabilization and it’s first to use a new design which involves photo sites (pixels) that are three times as big as those on a 12MP size and twice as big as those pixels on the Nokia 808 pure view and iPhone 5 camera, it boats a 4-mega pixel on a 12MP sensor. A bigger pixel means lower noise levels, better dynamic range and better pixel level detail. Low light performance is also helped by OIS (Optical Image Stabilization).
The HTC One can shoot video up to 1080p resolution at 30fps. Like Sony Xperia Z it also had HDR video recording mode, but the frame rate falls to 28fps. It also support 720p @60fps higher frame rate video recording. There is feature called HTC Zoe which allows you to capture up to 20 photos and a 3 second video.
HTC One will have 32GB or 64GB of non-expandable storage and rich connectivity setting including LTE(4G),NFC, Wi-Fi a/b/g/n/ac, Bluetooth 4 and GPS with GLONASS support. It is made out of aluminum and is about 9.3mm thick. It has dual front stereo speaker which is powered by built in amplifier delivers bigger sound (93db loudness!) with less distortion and more detail HTC calls it as HTC BoomSound.
Tech Specification:
2G Network: GSM 850 / 900 / 1800 / 1900
3G Network: HSDPA 850 /900 /2100/
4.7" S-LCD3 capacitive touch screen (1080 x 1920 pixels)
Proximity sensor for auto turn-off
Accelerometer sensor for auto-rotate UI
Digital Compass and gyro
Corning Gorilla Glass 2
Primary: 4 MP, 2688 x 1520 pixels, autofocus, LED flash
-  1/3'' sensor size, 2µm pixel size, simultaneous HD video and image recording, geo-tagging, face and smile detection, OIS
Video recording: Yes, 1080p@30fps
Secondary: Yes, 2.1 MP, 1080p@30fps, HDR
Dimension: 137.4 x 68.2 x 9.3 mm
Weight: 143 g
Phone memory: 32/64 GB, 2 GB RAM
Memory card: No
OS: Android OS, v4.1.2 (Jelly Bean), upgradable to v4.2.2 (Jelly Bean)
CPU: Quad-core 1.7 GHz Krait 300
GPU: Adreno 320
Chipset: Qualcomm APQ8064T Snapdragon 600
Audio jack: 3.5 mm audio jack
Bluetooth: Yes, v4.0 with A2DP
NFC: Yes (Market dependent)
USB: Yes, microUSB v2.0 (MHL)
Wi-Fi: Wi-Fi 802.11 a/ac/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot
GPRS: yes
EDGE: yes
4G or LTE: HSPA+; LTE, Cat3, 50 Mbps UL, 100 Mbps DL
GPS: Yes, with A-GPS support and GLONASS
Messaging: SMS (threaded view), MMS, Email, Push Email
Bowser: HTML5
FM radio: Stereo FM radio with RDS
Java: yes, via Java MIDP emulator

         - Active noise cancellation with dedicated mic
         - SNS integration
         - Dropbox (25 GB storage)
         - TV-out (via MHL A/V link)
         -  DivX/XviD/MP4/H.263/H.264/WMV player
         - MP3/eAAC+/WMA/WAV/FLAC player
         - Google Search, Maps, Gmail,
            YouTube, Calendar, Google Talk
         -  Document viewer/editor
         - Predictive text input
Black, Silver, Red