We knew that the Motorola DROID RAZR won’t be the world’s thinnest smartphone forever.  We just didn’t expect its title to be challenged so soon.  And, the challenger?  The Fujitsu ARROWS F-07D, which recently made the rounds for approval at the Federal Communications Commission (FCC).

Filings at the FCC showed that the device is merely 6.7 millimeters thin.  In comparison, the DROID RAZR is 0.4 mm thicker at 7.1 mm, whereas the difference is even more noticeable if you compare the ARROWS F-07D with the 9.3-mm Apple iPhone 4S.

The Fujitsu device also remains slim almost throughout its body, with no large hump at one end, like the ones you’d see on the DROID RAZR and the Samsung Galaxy S II.  The thinnest to the thickest point of F-07D only spans less than 2 mm.

Besides its thin form factor, the ARROWS F-07D also has other noteworthy features. According to reports on Ktai Watch, a 1.4-GHz Qualcomm Snapdragon processor powers the device with Android 2.3 Gingerbread onboard. It also has 512 MB of RAM, 1 GB internal storage, a 5-MP camera, Micro USB and Micro HDMI ports, and a 4-inch OLED display with 480×854 resolution. The phone is also waterproof and protected by Gorilla Glass.

NTT DoCoMo will handle ARROWS F-07D’s launch in 2012, although price and availability to other markets are unclear for now.

Who’s wishing for this slim Android phone to arrive stateside?

Conan Hughes
Contributor at Android Authority covering all things Android.