Both of those phones have touchscreens, and the Renoir has an 8-megapixel camera. Now along comes the KC780. This phone again offers an 8-megapixel camera, but it drops the touchscreen. Oh, and the fairly meaningless naming convention. This phone is just identified by a letters/numbers combination and its aim is to bring the 8-megapixel camera to a mid-range price.
LG seems to have tried to get as large a screen as possible into the slider format of the KC780 without overwhelming your hands. I'm not certain the format works, to be honest. Even with the slide down this is a big phone measuring 105mm tall, 51mm wide, 13.7mm thick and weighing 90g. Open the slide and it is more than 140mm tall. Yet the screen isn't that vast at 2.4in and 240 x 320 pixels.
Contrast those dimensions to the aforementioned Renoir (106.5mm x 53.9mm x 17.2mm, 136g) and the Cookie (106.5mm x 55.4mm x 11.9mm, 89g) both of which share a 3in, 240 x 400 pixel screen. The long and the short of it, if you'll pardon the pun, is that the sheer 'viewability' to size ratio of the KC780 isn't that hot in comparison.
Still, the front screen's quality is nothing to grumble about and the front buttons are large and easy to handle. The front screen can display icons for four shortcuts, which you can select by using the large D-pad. Though you can't change the shortcuts, and are stuck with messaging, profiles, music playback and a favourites menu, you can edit the latter and populate it with up to nine shortcuts.
You can also set the main screen to flip through background images, which can have animations built into them. I have to say, though, that with all the usual status information also displayed on the screen, everything feels a bit crammed and untidy.