This is a global GSM phone, it can be used with AT&T and T-Mobile USA, but without 3G.
Introduction:
Samsung has decided to cover all flanks during its Android-led assault on the smartphone markets, introducing handsets in various form factors and price spots. At the IFA 2010 expo, a Samsung i5510was spotted, boasting Android 2.2 and a physical QWERTY keyboard, in a fairly slim package. Now we have a review unit of the device, and will put it through its paces so you can judge how TouchWiz 3.0 and Froyo get along together on a budget handset...
Design:The Samsung i5510 is made of the durable, glossy black plastic that the manufacturer uses on a lot of its handsets recently. The 3.2” capacitive touchscreen has 240x400 pixels of resolution. The LCD display is bright and responsive, and the pixel density is enough for everyday tasks.
Underneath the display there are three physical Android buttons – Home in the middle, Back on the right, and the Menu key on the left. Long-pressing the Menu key brings up the eight most recently used applications. The screen half of the Samsung i5510 is differentiated by the dark gray plastic surrounding it.