The Canon PowerShot SD700 IS is compact, though slightly larger than the other two models. Still, it's the right size to slip into a jacket or a loose pants pocket. At 6.8 ounces, it's a bit heavy for its small size, giving it a nice, solid feel.
The camera's intelligently laid-out controls are comfortable to operate, though with a few minor annoyances. Most of the controls are located on the back panel, leaving only the shutter release and zoom rocker on the top edge of the camera. I'm not crazy about the zoom rocker, which encircles the shutter release. Though its small nub makes it easy to find and responsive to use, I'd have preferred it to be slightly larger. You select among the shooting and playback modes via a half-covered, View-Master-like wheel on the right side of the camera.
The main camera controls rest in a four-way-plus-OK pad, while menu, print, and display buttons sit next to the LCD screen. You change the flash, timer, macro, and ISO sensitivity settings directly through the control pad, while more technical settings such as exposure compensation, white balance, and color adjustment are accessed via the function menu. The buttons are round and responsive, and they feel comfortable even under large thumbs. My only real quibble with the SD700's control layout is the tiny, finicky power button, which is wedged in an uncomfortable position just above the LCD screen and to the right of the viewfinder.