All of the 6900Z's connections are behind a door on the left side of camera, here you'll find the USB connector, video out and DC input.

To charge the battery in-camera you must connect the supplied AC adapter / battery to the DC input connector here, it probably would have been a little more convenient to leave the DC connector exposed or implement some kind of cradle design as on the 6800Z.

The 6900Z features the same 6x optical zoom lens as the 4900Z. It's the extending type, that is at power up it extends from the main barrel to its normal operating length. It provides a 35 mm equivalent focal length range of 35 mm to 210 mm and an impressive maximum aperture of F2.8 - F3.1. That makes this lens not only useful (because of its 210 mm top end) but also fast, F3.1 is very impressive at this equiv. focal length.

Focusing and zoom are electronic (motorized).

The 6900Z's tripod mount is metal but unfortunately it's located too near to the front of the body for my liking. This may lead to the camera tipping forward on certain tripod mounts. Also it's not in line with the lens barrel center.

The pop-up flash on the 4900Z has a quoted range of wide: 0.3 - 3.6 m (1 - 11.8 ft), tele: 0.9 - 3.2 m (3 - 10.5 ft).

The flash itself is released by pressing a small button on the left edge (you can see it in this photo). The small photocell beside the flash appears to measure flash output at the time of firing.

The flash hot-shoe allows you to use external flash units or studio systems. The manual says "Flash units that can be used with this camera must meet the following three conditions: (1) The aperture can be set, (2) External flash synchronization can be used, (3) The ISO sensitivity can be set. The 6900Z has an external flash white balance feature, go into the white balance menu, select manual white balance, aim the camera at a white sheet of paper and press the custom white balance button, the flash will fire and the camera will measure the white balance.