Sony user here. I just plug into the USB-C on the camera (a7R IV) to download photos from it, it mounts the SD cards as USB drives. No sense faffing about with their crappy wifi program.
Does your phone read the RAW files, or are you shooting JPEG? (iOS and macOS don’t preview Fuji RAW files, which is not a surprise, given how they require very special handling as they’re not traditional Bayer filter sensors.)
And how is the performance when editing on the phone? Those are some big files.
My iPad Pro reads the RAW files from the Sony A7R3. Performance is fine but I stick to JPG due to file size. The iPad 6 had terrible performs with the same RAW files, apps would frequently crash due to memory limitations.
I’ve only tried editing Nikon Z7 RAW files on an iPad Pro, and I honestly don’t remember which generation of Pro. It was OK, but not stellar.
The file size, oof, yeah. That’s a good point. My lossless compression RAW files from my Fuji are ~30 megabytes. Given an iOS device averages 128GB of storage (my rough ballpark guess), that’s going to fill up quickly.
Are you getting this to work straight to mobile? I use the crappy wifi share to get shots onto my phone on the go, but I'd much rather get the RAW files over vs. a downsampled JPEG if possible. Might be worth carrying a small USB-C to lightning cable if it works straight to iPhone.
