You can, they are just expensive (other than iphone). Maybe 8k for a handheld basic one (e.g. Trion P1), $15k for a drone attachment (e.g. DJI Zenmuse L1) - more for the ones surveyors use proper including the tripod-mount ones.

At the consumer end photogrammetry tends to just be so much cheaper that its preferred unless you really need defined accuracy at a high level of detail. Lidar tends to work currently much better in an industrial/professional context because its more accurate. Whether Lidar will make the jump to lower cost / consumer level is the big open question (and basically the same issue as for cars here)

I was wondering this too, although for a different use-case. A couple years ago I was walking through a field/vacant lot not far from Centralia, WA and I came across what I think is a grave.

The (supposed) "grave" was roughly human-sized and human-shaped, the ground was concave, sunken in and deepest at the center, and it was encircled with stones that were slightly larger than grapefruit.

The reason I suspect it's a grave is because I stumbled upon a very similar-looking thing at a historical site in Tooele county Utah named Mercur cemetery.

With Lidar I could prove/disprove my grave theory, correct?

Lookup the RPLidar family of devices. Cheap 1D, easy to work with. By 1D I mean that it measures ranges in 360degrees around the plane that it is spinning in.

I think this depends on your budget and what exactly you want to do. Do you want to scan your house from outside? Sounds expensive, would probably have to be drone-mounted, and the drone would fly around for a while (depending on the shape of the house.) Inside, and don't mind some minor inaccuracies? Not Lidar, but a Kinect from yesteryear may be enough.

iPhone pro with LiDAR and Scaniverse or Polycam free apps.

I wouldn't say high resolution, but you can get away with some scans with Android.

There are options but the devices are limited (and the applications too)

Samsung S20 series are the last to have it (And I think the Plus is the best one for it)

Going a little older the Note 10 Plus as well (also an awesome phone)

Of the same vintage there are some other devices. You have to look at the ARCore device list and Ctrl F for "ToF" https://developers.google.com/ar/devices

As for applications that can take advantage of the ARCore depth mapping there's RTAB-Map and 3D Live Scanner

https://github.com/introlab/rtabmap/releases/tag/0.21.4 (You'd want the android30 build)

https://github.com/lvonasek/3DLiveScanner/releases/tag/v2022

RTAB-Map is more fleshed out, but has a bit of a learning curve. By far my preferred way of capturing a scan. Be sure to set the values up a little as the defaults are fairly reserved.

3DLiveScanner is more a shoot and done. You capture and it exports all in one with minimal settings to tweak. This was my go to forever before realizing RTAB-Map had builds that worked. It's very capabale for that it is and can get some really good scans setting the res to 2 or 1 cm.

Sample from the S20 Plus https://sketchfab.com/3d-models/polygonal-printer-f2855acc08...

https://sketchfab.com/3d-models/truck-in-the-bush-c2f9c1842e...

https://sketchfab.com/3d-models/3doggo-and-a-catscan-79f1f12...

Note 10 Plus was a big rougher but I don't know if I had found the size setting at that point https://sketchfab.com/3d-models/house-dd80af1455c74874951953...

As far as I'm aware there's nothing on the Android side slated to contain a ToF depth sensor.

Note: If you have a decent Android at the moment, ARCore by itself with dual cameras does surprisingly well for what it is.

Both of those applications will still do live on device scanning with only RGB cameras. 3DLiveScanner will just work if you want to try it.

RTAB-Map you have to go to Settings > Mapping > check Depth from Motion and then on the main screen very first item make sure ARCore NDK is set as the driver (See note above about tweaking the capture settings). The live scan will look a bit rough but if you capture as much detail as you can and let it process, results turn out much better after the processing.