Basically you have 2 options:
Hand-held 3D scanners (cost at least $300): Sense 3D scanner, Structure.io, Go!SCAN, Fuel3D. Should work out-of-the-box.
USB depth sensors (difficult to find < $100). These have a few limitations:
- All don't come with an SDK that creates high quality polygon models from 3D pointcloud. You'll end up coding.
- Do not contain an IMU (Inertial Measurement Unit) like , so models may be mis-aligned. (this is just a guess)
- Not wireless
What you are asking hasn't hit the market yet. I'd definitely invest some more money and choose option #1.