Video clip record: many digital cameras can capture short clips of film in AVI (Audio Video Interleave) format. This is easy to view on computer and share via email. The best video quality is 30fps VGA - a resolution of 640 x 480 - with sound. Video files use more memory than stills, and while you can record continuous video on some cameras, others allow only 30 seconds at a time, with or without sound.
Face recognition: the camera automatically 'recognises' faces and focuses on it, giving you clearer portraits.
Wireless connectivity: Wi-Fi lets you connect wirelessly to a computer or printer. Look for the Wi-Fi logo on the camera, and choose a printer and computer that are Wi-Fi enabled.
Waterproof: check specifications for allowed depth, without using additional protection. Water-resistant cameras are splash-proof, but won't survive submersion.
Scene modes: these optimise performance in specific situations. The 'Snow' setting sets the aperture and flash to suite bright white subject matter, while the 'Dusk' setting maximises exposure for more light. Each camera varies with the number and type of scenes offered.
Red-eye removal: prevents 'red-eye', often caused by the flash, by either modifying the actual flash or removing it from the photo via an in-camera feature.
Image stabiliser: compensates for shaky hands. Image stabilisers can be optical or, preferably, mechanical features.
PictBridge: connects the camera directly with a PictBridge-enabled printer, to print your photos without a computer.
Software: digital cameras usually include a CD-ROM with photographic software, so you can manipulate or edit images. Check that it's compatible with your computer.