Some Chinese are giving their old iPhone models a makeover to look like the latest iPhone 7 rather than buying new - a trend that could dent Apple Inc's efforts to boost sales in what has been its biggest growth driver.

Online sites offer shoppers makeover kits, false cameras and even dust plugs to hide the removed headphone jack to give their iPhone 6 or 6S the appearance of iPhone 7 - Apple's latest flagship product which launched last month.

The makeover quirk mirrors a broader view among some Chinese users that the iPhone 7 doesn't have enough new features to convince them to trade up.