To releasably secure the information device
12 to the frame
14 of the band
16, a mounting structure
28 is provided on the housing, which releasably detaches from the frame
14. The mounting structure
28 is formed at least partially (in the depicted embodiment, fully) around a perimeter side edge
30 of the housing
18. The mounting structure
28 includes a lip
32 formed at least partially around the perimeter side edge
30 of the frame
14. The lip
32 extends from a reduced perimeter wall
34 that is substantially vertical, and the lip
32 includes an enlarged perimeter wall
36 that is also substantially vertical, and a ledge
38, which is substantially horizontal, each of which extend at least partially (in the depicted embodiment, fully) around the perimeter side edge
30 of the housing
14. The enlarged perimeter wall
36 may be covered with a resiliently deformable seal member
39, typically made of an elastomeric material such as a flexible plastic or rubber, which helps secure the information device to the dock
50, as discussed below. It will be appreciated that the perimeter side edge
30 of the information device
12 has a shape that corresponds to the shape of an inside perimeter wall
42 of the frame
14. Other shapes are possible for the lip
32 of the mounting structure; for example, the ledge
36 may be angled downward or upward relative to horizontal, and the enlarged perimeter wall
38 may be angled inward and sloping toward the void
40 instead of vertical.