China Unicom has confirmed Apple's iPhone 4 will be available from 16 September.

Chinese news source Caing reports customers are likely to suffer the same antenna issues that have plagued some iPhone 4 users, and following Apple's lead, China Unicom will offer free Bumper cases to hopefully resolve any reception issues.

China Unicom, the exclusive provider of Apple's iPhone in China, launched the 8G version of the iPhone 3GS on 9 August.

Apple iPhone 4