Nexus S is the next generation of Nexus devices co-developed by Google and Samsung. The latest Android platform (Gingerbread) paired with 1 GHz Hummingbird processor and 16GB of memory makes Nexus S one of the fastest phones on the market. It comes pre-installed with the best of Google apps and enabled with new and popular features like true multi-tasking, Wi-Fi hotspot, Internet Callling, NFC support, and full web browsing. With this device, users will also be the first to receive software upgrades and new Google mobile apps as soon as they become available. For more details, visit http://www.google.com/nexus.

Availability and Networks
Availability T-Mobile (United States) 

Battery
Type Lithium Ion (Li-Ion) (1500 mAH)
Talk time 6 hours
Standby time (max) 428 hours

Storage and Memory
RAM 512MB
Internal storage 16384MB

Connectivity
Network support Quad-band GSM: 850, 900, 1800, 1900 Tri-band HSPA: 900, 2100, 1700 HSPA type: HSDPA (7.2Mbps) HSUPA (5.76Mbps)

WiFi 802.11 b/g/n
Bluetooth Bluetooth 2.1
Infrared 
GPS 

Android
OS Version Android 2.3
UI Android

Size and Weight
Dimensions 63.0 mm (w)
123.9 mm (h)
10.88 mm (d) 
Weight 129.0 grams 

Display
Screen size 4.0 inches
Screen resolution WVGA (800 x 480)
Touch screen 

Hardware
CPU 1GHz Cortex A8 (Hummingbird) processor
USB USB 2.0
Audio / headphone jack None
FM Radio 
Physical keyboard 
Accelerometer 

Camera
Primary 5.0 megapixels
Features Flash
Video 

Additional Features
Contour Display, Near Field Communications (NFC), Three-axis gyroscope, Anti-fingerprint display coating, Internet Calling support (VoIP/SIP)

출처 http://www.google.com/phone/detail/nexus-s