I tried to use this with my Sony camera about two years ago and just could not get consistent results. Currently using Sony's Catalyst Browse which does a great job stabilizing the footage but the workflow is poor. Looks like Gyroflow has a plugin for DaVinci Resolve[1]. If the stabilization has been improved and could be done right in Resolve I will definitely us this. [1] https://docs.gyroflow.xyz/app/getting-start…
When I last played with it I was able to get quite good results with an A6400 and a phone as the gyro (the camera does not natively provide the data), except for when the rolling shutter is extreme, at which point it falls apart. The camera's notoriously slow sensor readout seems to be more than Gyroflow can accommodate for when it gets pushed.
Since you've been able to make it work with a phone, I presume one could use something from this page as well:
https://www.sparkfun.com/search/results?term=gyro+accelerome...
It would be neat to make a small dedicated box that you could just attach to the camera (or camera mount). Obviously you'd also need some method of logging the data, and syncing it to the video later (although from skimming the docs, it looks like the latter function is already in the software).