The Nexus One runs on Android 2.1 OS, features a 3.7-inch WVGA AMOLED touchscreen 800 x 480 pixels,and a 5MP camera with autofocus and LED flash, Nexus features also a 3.5mm headphone jack, 802.11b/g WiFi, stereo Bluetooth , a 4GB microSD card expandable to 32GB, accelerometer, active noise compression, compass support and GPS chip.

With the voice-to-text capability you can populate any text field by talking (not only text searches) and composing E-mails and SMS. The Nexus One also has live animated wallpapers that you can interact with.

The phone is currently available unlocked for $529 through google.com/phone, or for $179.99 on a two year deal from T-Mobile and will later be launched on other carriers.

• Band : GSM/EDGE (850, 900, 1800, 1900 MHz), UMTS 1/4/8 (2100/AWS/900)

• Data : GPRS/EDGE/HSPA/WiFi

• Processor: Qualcomm QSD 8250 1 GHz

• Operating system: Android Mobile Technology Platform 2.1 (Eclair)

• Capacity: 512MB Flash, 512MB RAM and 4GB Micro SD Card (Expandable to 32 GB)

• Display : 3.7-inch WVGA AMOLED touchscreen 800 x 480 pixels

• Camera : 5 megapixels Autofocus, 2X digital zoom and LED flash Video captured at 720×480 pixels at 20 frames per second or higher.

• Keyboard : Full QWERTY on touchscreen

• Conectivity: Wi-Fi 802.11b/g/n, Stereo Bluetooth v2.1 + EDR

• Voice-to-text for all text fields on the phone.

• Google Earth for Android sneak peak for 3D.

• Battery: 1400 mAH battery, Talk time Up to 10 hours on 2G Up to 7 hours on 3G and Standby time Up to 290 hours on 2G Up to 250 hours on 3G

• Dimensions: 119 x 59.8 x 11.5mm

• Weight 130 grams

Watch the demo of Nexus One from Google