HTC has confirmed to launch its high-end Android smartphone for Japanese market, the HTC J Butterfly. Reportedly, this handset will be available starting December 10th in Japan but its price isn’t revealed yet. The J Butterfly is also known at other markets as the HTC Droid DNA smartphone. 
Running on Android 4.1 Jelly Bean operating system, the HTC J Butterfly smartphone is powered by a 1.5GHz Snapdragon S4 APQ8064 quad-core processor, 2GB of RAM, and 16GB of built-in memory.
New HTC Butterfly J smartphone packs a 5-inch touchscreen display with 1920 x 1080 Full HD resolution, and two cameras (a 2-megapixel front and an 8MP rear-facing).
Other features on this quad-core smartphone are microSD card support, Bluetooth, 4G LTE connectivity, GPS, WiFi, NFC, and a 2,020mAh battery.
Source
HTC J Butterfly quad-core smartphone debut in Japan on December 10
HTC Butterfly quad-core 5-inch smartphone made official | GadgetFolder.Com
Dec 8, 2012 -
[...] smartphone, the HTC Butterfly that show up at its global website. This handset is basically the HTC J Butterfly, which was announced in Japan, but in the US (via Verizon Wireless) under the name of the HTC Droid [...]