Apple Inc. fell the most in almost five months after unveiling two iPhones that were criticized by analysts as lacking enough new features or a sufficiently low price to attract a broad range of new customers.

In a break with the past, when the company introduced one iPhone a year, Apple on Tuesday unveiled two new models. The iPhone 5C will cost $99 to $199 with a wireless contract and comes in five different colors. A high-end iPhone 5S with fingerprint-security features, a speedier processor and better camera will cost $199 to $399 and be available in three colors. Apple’s shares fell $26.93, or 5.44 percent, to close at $467.71 on Wednesday, making it the worst performer in the S&P 500.

The devices underscore a shift in the $280 billion smartphone industry, as the novelty of Internet-connected handsets wears off and the gadgets share many of the same basic features. Facing increasing competition from rivals such as Samsung Electronics Co. that offer mobile phones with different designs and prices, Apple Chief Executive Officer Tim Cook is following suit and expanding his company’s own lineup to court more style-conscious customers and users in developing markets.

“We’ve gotten through the first phase of the industry,” said Benedict Evans, a mobile-phone industry analyst at Enders Analysis. “The original vision has been built out. We’re now in a market where Apple is fighting on more equal terms.”

Apple’s strategy shift includes what is essentially a repackaging of last year’s iPhone 5 in a new polycarbonate casing that comes in blue, pink, green, yellow and white to become the iPhone 5C. The company isn’t pricing the 5C as cheaply as competitors’ handsets, with the phone costing $549 and higher without a two-year contract, according to Apple’s U.S. website, showing it’s unwilling to trade its industry-leading profit margins for increased market share.

Investors had expected a lower price for the iPhone 5C to appeal to more customers in emerging markets such as China, according to Brian Blair, an analyst at Wedge Partners Corp. who attended the Apple event.

“Nobody expected it to be this high,” Blair said. “They are clearly saying we aren’t willing to go downstream.”

Analysts at UBS AG, Bank of America Corp. and Credit Suisse Group AG downgraded Apple’s stock, saying the high price will limit sales in emerging markets.

Even so, Apple is boosting its pool of potential customers. Apple said it is adding Japan’s largest carrier, NTT DoCoMo Inc., and that it will have devices immediately available in China for the first time. The company is near a deal with China Mobile Ltd., the world’s largest carrier, people familiar with the plans have said.

The shift in iPhone strategy is a turnabout for Apple, which has long been the pacesetter in the smartphone market. When Apple co-founder Steve Jobs unveiled the iPhone in January 2007, he upended a market dominated by Nokia Oyj’s feature phones and BlackBerry Ltd.’s keyboard handsets.