Nexus One - Hardware


At time of launch, the Nexus One had a 3.7 inch AMOLED screen with PenTile matrix pixel arrangement. The raster resolution is 480×800 pixels, however each pixel in the PenTile RGBG display is represented by only two subpixels on average, using subpixel rendering rather than the three found in most displays, meeting the definition of WVGA according to the Video Electronics Standards Association specifications for measuring resolution.

Citing supply shortages of AMOLED displays, HTC announced on July 26, 2010 that the Nexus One would begin using Super LCD display technology instead of AMOLED. The Super LCD display was described as having greater power efficiency and color accuracy than the AMOLED display, while sacrificing the lauded color saturation and deep blacks of the original display. As of January 15, 2011 or earlier, all Nexus Ones available via Brightstar, Google's worldwide distribution partner for Android development phones, shipped with Super LCD instead of AMOLED. To determine whether a phone has the AMOLED or SLCD display, power on while holding the volume down key or pressing the trackball and examine the MICROP line; 0b15 indicates AMOLED while 0c15 indicates SLCD. The internal sticker on the back side of the screen assembly can also be examined; part number 60H00443-03P indicates SLCD and part number 60H00287-00P indicates AMOLED. Finally, USB debugging or a terminal emulator app can also be used to examine the kernel log to determine which display the phone has.

The capacitive touchscreen which uses the Synaptics ClearPad 2000 sensor supports multi-touch gestures limited to single finger input and 2×1D two finger gestures. It has an illuminated trackball which can emit different colors of light based on the type of notification being received. A voice processor developed by Audience uses a second microphone (on the back) to suppress background noise during phone conversations. A 4-conductor TRRS style 3.5mm stereo headset jack is also provided, adding microphone and pause/resume/next/previous functions to the stereo earphones.

The phone features a 5.0 megapixel auto-focus camera with LED flash and digital zoom, GPS receiver, Bluetooth 2.0, and 802.11b/g Wi-Fi abilities. The Snapdragon processor allows for many advanced abilities including 720p video playback. There is built in hardware decoding for H.263, H.264 and MPEG-4 video, and can play MP3, AAC+, Ogg Vorbis, WAV, and MIDI audio, and display JPEG, GIF, PNG, and BMP image formats. It has a micro USB port which conforms to the GSMA Universal Charging Solution instead of the common mini-USB port, or HTC's mini-USB compatible format (ExtUSB). The microSD card slot allows expansion up to 32 gigabytes of card storage. Applications can be installed either to the 512 MB internal flash memory, of which 190 MB are available for that purpose, or to the microSD card. Many applications, however, are not optimized for installation on external memory, and high data I/O throughput to the microSD may cause applications running off of external memory to freeze.

A third party analysis by iSuppli estimates the cost of hardware components to be around $175.

Read more about this topic:  Nexus One

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