TrustedReviews posted a review of the Pentax Optio S5z digital camera

In the case of the £198 Optio S5z, the main feature distinguishing it from the virtually identical S5n is its big 2.5in monitor. To accommodate such a big screen on such a small camera the case has been partially redesigned and is 3mm taller and 1mm thicker than its predecessor, but the size and position of the lens, flash, AF illuminator and self-timer indicator are unchanged. The extra height comes from the curvature of the previously flat top panel, but the positions of the on/off button and shutter release are identical to the previous model.

Pentax Optio S5z