The new iPhone 6 goes on sale on Sept. 19 in the United States but the company began taking online orders on Thursday. While the larger 5.5-inch "Plus" models now display a wait time of up to a month, the 4.7-inch version remains available for delivery on Sept. 19, Apple's website showed.
Verizon Wireless, AT&T and Sprint Corp, also showed shipment delays of up to six weeks on their respective websites. Apple said the pace of orders has so far outstripped any of its previous iPhones.
"Response to iPhone 6 and iPhone 6 Plus has been incredible, with a record number of pre-orders overnight. Pre-orders are currently available online or through the Apple Store App," spokeswoman Trudy Muller said.
(Also see: iPhone 6 and iPhone 6 Plus: Everything You Need to Know)
Apple routinely grapples with iPhone supply constraints, particularly in years that involve a smartphone re-design. The latest iPhones come with larger screens and some analysts had anticipated that production issues may keep a lid on initial runs.
Its suppliers had scrambled to get enough screens ready because the need to redesign a key component had disrupted panel production, supply chain sources told Reuters last month.
It was unclear whether the hiccup could limit the number of phones available to consumers, the sources said at the time. Apple declined to comment on supply chain issues.
In addition, Chinese customers may also have to wait until the year-end before they can buy the iPhone 6. Apple is yet to set a release date for China, the world's biggest smartphone market.
(Also see: iPhone 6 Launch Delay in China Gives Smugglers Reason to Cheer)
The company unveiled its latest iPhones along with a watch and a mobile payments service on Tuesday.
AT&T's chief executive of mobile and business, Ralph de la Vega, told investors at a conference in New York that iPhone 6 orders have so far surpassed orders last year and the year before.
"It is such a great thing to wake up in the morning to know that you have hundreds of thousands of orders already before you even have a cup of coffee," said the executive.
Apple's iPhones tend to incite the kind of initial buying frenzy unknown to many other brands, partly because of the company's well-honed marketing tactics.
On secondary markets online, the rights to a pre-ordered iPhone 6 Plus are worth as much as double the unsubsidized sticker price. One eBay auction for an unlocked 128-gigabyte gold version of the 5.5-inch phone, for example, was bidding at $1,625 on Friday afternoon, compared with a face value of $949.
One post on the New York City edition of Craigslist sought $10,000 the privilege to "be one of the first & few people to own this model and before the rest of the world."
New iPhones tend to get listed at stratospheric prices on various online retail sites from the United States to China, on the assumption that there's big demand from people who must get their hands on the phone from day one. That in turns fuels a grey market of dealers who buy in bulk for resale.
© Thomson Reuters 2014
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