So you are looking for a covert camera to record video at home or your place of business? The Belt Spy Camera has you covered. It records video in 1080p quality with audio. It can also take pictures. The belt has 16 GB of memory and a rechargeable 420 mA battery, which runs for up to 80 minutes per charge. You will be able to review your video/audio files on Windows, Mac OS, and Linux powered machines.
The Belt Camera is not going to outperform a DSLR or high-end camcorder, but it does let you record video in a discreet fashion. You can get yours for under $120.