Can I bring back the iPhone 6 I bought during my trip to Hong Kong?

According to Announcement No.54 of the General Administration of Customs of the People's Republic of China (20 10):

1. Entry resident passengers carry articles for their own use obtained abroad, with a total value of less than 5,000 yuan (including 5,000 yuan).

2. Non-resident passengers who intend to stay in China with personal belongings with a total value of less than RMB 2,000 (including RMB 2,000) shall be released duty-free.

3. If the imported articles for personal use exceeding 5,000 yuan are approved by the customs for personal use, the customs shall levy taxes on the excess and the undivided single articles in full in accordance with the People's Republic of China (PRC) Import Tax Rate Table and the Duty-paid Price Table for Luggage and Personal Mail of Inbound Passengers.

To sum up, if it is iphone6, it is no problem to bring one or two back from Hong Kong.