A large-scale survey from 451 Research that tracks North American consumer purchase intentions shows that the percentage of those likely to buy the iPhone 6 is markedly higher than was the case for both the iPhone 5 and iPhone 5s. In all three cases, the survey tracked intentions prior to any official announcement by Apple, providing a like-for-like comparison.

A total of 40 percent of the 4,109 consumers question said that they were likely to buy the iPhone 6, compared to 33 percent for the iPhone 5 and 26 percent for the iPhone 5s … 

“This is the highest level of demand for an unannounced Apple model in a ChangeWave survey – stronger than we’ve seen in previous years for the iPhone 5S and iPhone 5 models prior to their announcements,” said Andy Golub of 451 Research. “Speculation over a larger screen iPhone is clearly striking a chord with consumers.”

Consumers were asked to assume that the iPhone 6 would have a larger screen size and a faster processor, with pricing for a two-year contract of $199 (16GB), $299 (32GB) or $399 (64GB).

Consistent reports that Apple plans both a 4.7-inch and 5.5-inch version of the iPhone 6 each have been backed by internal slides from Apple. The phone is expected to be released running iOS 8 with a focus on health and fitness.

It’s been rumored that the 4.7-inch model could be released before a larger 5.5-inch version.

Via Fortune