There are definitely technologies that can do it, but probably not in priceranges you're looking at. Commercial/industrial fine detail 3d scanners often use structured light in conjunction with photogrammetry, which uses cameras and computing to build a model from pictures at many angles and this can produce very high resolution and detail when done correctly. Lidar sensors can be made to be this sensitive, but not that inexpensively, so for very accurate displacement measurements, laser interferometry is used instead (and actually, used laser displacement sensors may be cheap enough to start moving towards low budget applications).
For particularly slow moving scans, you can also try just averaging your measurements, even to the point of introducing some kind of external controlled noise source to try to reduce error, but you still do run into issues with reflectiveness of materials in some cases - though a light spray of a matte color paint can often overcome this, if it's an option.