As we were digging through the FCC database this morning, we stumbled upon a peculiar handset. Listed as the LG D300g, it comes with support for Wi-Fi, GPS, and the 850/1900MHz cellular frequencies. At first we assumed it was just another Android device, but interestingly, that might not be the case. Instead, it is speculated that a smartphone running Firefox OS bears this particular model number.
LG is among the supporters of Firefox OS, having promised to deliver such a smartphone in the near future. As a side note, the LG D300 has been Wi-Fi certified earlier this month, on September 2. The latter listing does not specify its OS, unfortunately.The evidence is far from solid, of course, so take all of this with a grain of salt. But on the other hand, we do know that
Judging by its dimensions – 66.5 by 118.3 millimeters – the LG D300 might sport a screen of about 4.3 inches in diagonal, much like the Geeksphone Peak.
Further investigation led us to the UAP file for the LG D300, which confirms that the device runs Firefox OS. The FCC also holds a filing for an LG D300f, which appears to be a model very similar to the D300g.
reference: Firefox OS Guide