Prosecutors said Dong Liang met the victim through Tencent's instant messaging tool Weixin in November. After chatting for some time, the pair decided to meet each other at a subway station Nov 15.
Dong said they had some beer and went to a hotel after the woman agreed to have sex with him.
The next day, Dong woke up and told the sleeping woman he had to go to work. Before he left, Dong quietly took the woman's iPhone that was beside the pillow, a court heard.
The woman reported the theft to the police. Two hours later, Dong was caught at his home.
Photos: Kareena Kapoor Khan and Aamir Khan at Mumbai airport
Photos: SRK, wife Gauri, Aishwarya Rai, Shweta Bachchan at Vogue Awards
Photos: Harbhajan Singh-Geeta Basra's TV outing with daughter Hinaya
Photos: Malaika Arora flaunts ripped jeans like a boss!
Photos: Vaani Kapoor, Kriti Sanon, Dia Mirza sizzle on the ramp