And to cut through the minefield of Samsung's confusing naming strategy, what you should know is first of all it's pretty special, and second of all, it's not coming here anytime soon.
If you're based in Japan, though, what you have on your hands is basically a Galaxy S4 with an end-of-2013 take on high end specs.
It starts with a 5in Super AMOLED display – full HD, of course – while the highlights on the inside include a Snapdragon 800 processor, 3GB of RAM and 32GB of storage. Cameras come in 13.2MP and 2.1MP varieties, and the Galaxy J supports super-fast LTE-Advanced networks.
At 137 x 70 x 8.6mm and weighing 146g it's not the slimmest of handsets, one of very few areas where the Galaxy S4 is the better bet, but otherwise the Galaxy J does a good job of illustrating just how far things have come since the S4 landed back in the Spring.
Plus, you can have it in Coral Pink, Satin White, and Lapis Blue, which can't be said for the Galaxy S4. That said, getting an S4 in your hands doesn't involve a 12,000-mile round trip, so we'll call it even for now.
Via Phone Arena