This smartphone is the first to be released by Google under its own brand name, and it offers a number of high-end features. It has a tablet shape with a 3.7-inch, WVGA, AM-OLED display and a trackball. The Nexus One runs Android OS 2.1 on a 1 GHz Snapdragon processor, making it the first to offer this combination. It has 512 MB RAM, and this device comes with a 4 GB microSD card. Users have the option to expand this up to 32 GB. At this point, it is available only from T-Mobile USA, but will be released by Verizon Wireless and Vodafone in the spring. It supports T-Mobile’s 3G service, and also Wi-Fi b/g and Bluetooth 2.1 + EDR with stereo support. Other features include a 5 MPx camera with auto-focus and LED flash, 3.5 mm headset jack, a GPS receiver, accelerometer, and digital compass.