Below is a simple comparison table showing the dimensions of the Nokia N97 along with a few of its main competitors. We can see that it is longer than any of the other 3 handsets featured here. Only Apples iPhone is wider and by a considerable margin. As for its height, it can be considered quite 'chunky' with it peaking at 18.25 mm at camera area - but considering it's housing a full QWERTY keyboard in there somewhere - these dimensions are impressive.
|  Hansdet |  Length [mm]
|  Width [mm]
|  Height [mm]
|
 Nokia N97
|  117.2 |  55.3 |  15.9 |
 Apple 3G iPhone
|  115.5 [+1.7]
|  62.1 [-6.8]
|  12.3 [+3.6]
|
 Sony Xperia X1
|  110.5 [+6.7]
|  52.6 [+2.7] |  17 [-1.1] |
|  Nokia 5800 |  111 [+6.2]
|  51.7 [+3.6]
|  15.5 [+0.4] |