The Nexus One is a smartphone from Google, which uses the Android mobile operating system. The device is manufactured by HTC Corporation, and became available on January 5, 2010. Features of the phone include the ability to transcribe voice to text, a native Gmail application, and voice directions while driving.
The phone comes unlocked, and is currently offered for use on the T-Mobile network in the United States; a version for use on the Verizon (US) and Vodafone (European) networks is expected in the second calendar quarter of 2010. It can be used on any GSM network worldwide, although 3G speeds will only function on certain networks.
Hardware
The Nexus One features a 3.7in AMOLED display, with a resolution 800x480. The screen has a 100,000:1 contrast ratio and a response time of 1ms. It has an illuminated trackball which can emit different colors of light based on the type of notification being received. The phone has two microphones, one on the front and one on the back, to enable noise cancellation to reduce background noise during phone conversations. A standard 3.5mm headphone jack is also provided.
The phone features a 1GHz Qualcomm 8250 processor, 512MB of RAM, a 4GB microSD card, 512MB of internal Flash storage, a 5MP auto-focus camera with LED flash and digital zoom, GPS receiver, light and proximity sensors, Bluetooth 2.1 + EDR, and 802.11b/g/n Wifi capabilities. It provides hardware decoding for H.263, H.264 and MPEG-4 video, and is capable of playing MP3, AAC+, Ogg Vorbis, WAV and MIDI audio, and displaying the JPEG, GIF, PNG and BMP image formats. It has a standard micro USB port rather than the proprietary HTC connector, and the microSD card slot allows expansion up to 32 gigabytes of card storage. Initially applications from the Android store will be limited to the 512MB of internal flash memory, although application storage on removable SD cards will be enabled once security and piracy concerns have been addressed.
The phone weighs 130 grams (4.6 oz), with a height of 119 millimetres (4.7 in), a width of 59.8 millimetres (2.35 in), and a depth of 11.5 millimetres (0.45 in). It is powered by a removable 1400mAh battery, expected to last up to 290 hours on standby, 10 hours talk time, or 5 hours while browsing the internet.
The phone's antenna covers most major GSM providers worldwide, with the notable exception of the 850MHz and 1900MHz UMTS 3G bands used by AT&T and Rogers (of Canada). The GSM radio frequencies covered are 850, 900, 1800, and 1900 along with UMTS frequency bands 1 (2100MHz), 4 (1700MHz), and 8 (900MHz).
Software
The Nexus One runs the Google Android 2.1 operating system, codenamed 'Eclair'. The 2.1 firmware version of the Android operating system adds a few aesthetic changes such as "Live Wallpapers" which are animated in the background and react to different user inputs. It also replaces the "Application Drawer" with a simple button which can be pressed to access the list of applications installed on the phone. This thumbnail list can be scrolled up and down and as it's scrolled, the applications roll up into a 3D cube instead of disappearing from the screen. Once the bottom of the application thumbnail list is hit, the screen bounces off similar to the iPhone functionality.
Pinch-zooming is still not available on the 2.1 firmware of Android. However, double-tapping will zoom in. Additionally, the "Gallery" application allows the use of finger swiping to switch pictures rather than before where you had to press a "Right" or "Left" arrow key.
