"We think Apple is losing the screen-size wars," Misek said, noting that demand was moving away from the iPhone's 3.5-inch and 4-inch screens to screens of 5 inches offered by rivals such as Samsung Electronics Co Ltd, HTC Corp and Nokia Oyj. Misek is a top-rated analyst for the accuracy of his earnings estimates for Apple, according to Thomson Reuters StarMine. Apple said it shipped a record 47.8 million iPhones in the December quarter, but this trailed the average analyst forecast of 50 million units. Deutsche Bank trimmed its price target to $575 from $800, and said Apple should start making a lower-priced iPhone to arrest the market share loss. Credit Suisse analysts said a new product cycle and wider telecom carrier selection could be possible catalysts for the company, but added that these were not imminent.