Janet L.

Well, there are hardware limitations: If the camera does not have bluetooth hardware, no amount of firmware tweaking can make it connect over bluetooth.

I have been using Fuji cameras for years. First an S-1000, then an X-E1, and now a X-T4. The main reason I switched to Fuji is that I like the lens quality. Back in the '80s I spent a bunch of money on a Nikon outfit, and the image quality didn't compare favorably to my Leica M-2, with 50 and 35mm Summluxes and a 90 Summicron, Everything seemed flat as a flounder. I was printing on grade 6 paper to get tolerable prints, so I sold it at a considerable loss. By 2014 Film and processing was starting to be a challenge, so I wanted a digital camera. I would have bought an M-9, but that was totally out of my budget. Nowadays Digital Leica M bodies cost more than most of the cars I have owned. The S-1000, was for getting my toes wet in the digital world and did much better than I expected. The X-E1 worked pretty much like a traditional film camera, shutter speeds on a dial aperture on a ring. Likewise for the X-T4. The 18-55 f:2.8-4 was excellent. Perhaps the best kit lens ever, 'though the 16-80 F:4 gives it a hard run for that title. Now, I do a lot of available light work, Or as some describe it, available darkness, and Optical Image Stabilization is a game changer. I've gotten good shots at ridiculously slow shutter speeds, so long as the subject isn't moving too much. I've shot weddings by firelight and gotten excellent results.