Oppo today announced that it will offer its N1 Android-based smartphone to U.S. consumers beginning December 10. Oppo, which is a Chinese hardware maker, is selling the N1 with a choice of operating systems. Consumers can pick Oppo's ColorOS Android skin, CyanogenMod, or both. The phone will allow users to switch from ColorOS to CyanogenMod if they wish with no hacking required. The other stand-out feature of the N1 is a swiveling 13-megapixel camera that can be aimed either at the user or away from the user. Other features include a 5.9-inch 1080p HD display, a 1.7GHz Qualcomm Snapdragon 600 processor with 2GB of RAM, and either 16GB or 32GB of storage. The N1 also includes a touch panel on the back for one-handed use. The phone will cost $599, and will be sold unlocked and without a contract.