Small, lightweight, hands-free cameras — worn on a headband, for example, or tucked over an ear — will record life’s memorable moments as they unfold.

The Looxcie ($199), a small wearable camcorder introduced recently, loops over the ear. The camera is built into a Bluetooth headset that streams 480 x 320 pixel digital images at 15 frames per second wirelessly to Android phones that use a free Looxcie app. From there, the clips can go directly to e-mail.

The GoPro HD Hero 960 records high-definition video at 1,280 x 960 pixels and 30 frames a second. The lens can capture photos or video at an ultrawide, 170-degree angle.

As wearable cameras gain popularity, and as some amateur auteurs capture candid images of people with no wish to star on the Internet, the devices are sure to raise privacy and other issues.