Below you can see the front-view size comparison of the Fujifilm X-T100 and Nikon 1 AW1. The Nikon 1 AW1 is clearly the smaller of the two cameras. Its body is 7 mm narrower, 11 mm shorter and 10 mm thinner than the Fujifilm X-T100.
The chart below depicts how two cameras compare with average dimensions of the cameras in their class.