It's complicated
Well, my first idevice was SUPPOSED to be an iPod, probably 3rd or 4th gen, that I ordered from Apple back in 2003. I never received it, but FedEx claimed they delivered it, and to this day we still don't know what happened to that iPod, and I had to eat the cost, $400+tax. (Life Pro Tip- NEVER have a signature on file with FedEx, no matter how convenient it seems- you've signed away all responsibility for delivering the package.)
So then I ordered a Dell DJ and had that for a few years (the computer software for that was awful, admittedly), but at least I had something.
Then in 2006 I was able to cobble together enough funds to order a white iMac, along with a free 1st gen iPod nano, giving Apple a second chance, and those were my first.