It’s clear that the C905a is just an evolution of the K850i in term of both user experience and image quality. The resulting pictures are very good (slide show), but reveal similar camera limitations.
Colors on the C905a are a bit muted, which is disappointing. The macro works as expected, but the xenon flash is often too bright. Shots generally contain enough detail, thanks to quality optics (albeit not Carl Zeiss grade).
The controls are similar to most point-and-shoot cameras, with several dedicated keys (shutter, mode, playback, and zoom). In stills mode, the D-pad controls the flash, macro, timer and exposure settings…
In contrast to the decent interface, the device uses a proprietary audio/USB/power connector (Fast Port), and a proprietary memory card format (Memory Stick) – complete nonsense!
Of course, the C905a also features auto-rotation, geo-tagging, and video recording, which is relegated to a paltry QVGA (320×240 at 30 fps), vs. VGA (640×480 at 30 fps) on the N86 and DVD (720×480 at 30 fps) on the Memoir.
Here is a sample video (download original):
Ultimately, I can’t recommend the C905a. It’s a nice enough cameraphone, but it’s overshadowed by both the competition and sibling devices like the 12 megapixel Satio.