US consumers who want Apple's newest iPhones, including its most expensive model yet, the iPhone X, may find fewer deals as wireless carriers are less willing to offer subsidies on devices in a saturated market.
New phone launches have long offered carriers a chance to gain market share by offering incentives such as free service and discounts.
But customer defection rates fell to record lows in the last quarter as most people already have a mobile phone, a situation that creates less urgency to launch costly promotions to lure customers, analysts said.
Deals for the iPhone 8, 8 Plus and X have been pared back from the deals offered for the iPhone 7.
"In retrospect, there's some regret on how promotional they were," Craig Moffett, an analyst at MoffettNathanson, said. The iPhone 7 trade-in offers were too easily copied by rivals, resulting in a costly move that offered no competitive advantage, he said.
The iPhone 8 model starts at $US699 ($A876), while the iPhone X will start at $US999, Apple announced on Tuesday.
T-Mobile US Inc will give customers $US300 off a new iPhone if they trade in an iPhone 6 or newer. Meanwhile, Sprint Corp customers can save 50 per cent off the monthly lease price of the iPhone 8 if they trade in an iPhone 6 or newer, as well as eligible Android devices.
AT&T Inc said it will include a 32GB iPad for $US100 if customers buy the iPhone 8 or 8 Plus on a plan that allows subscribers to upgrade their phones as frequently as every year.
Verizon Communications Inc, the No. 1 wireless carrier, said customers can get $US300 off the iPhone 8 or 8 Plus when they sign up for unlimited and trade in select phones.
But the offers are less rich than last year, when all four major carriers offered up to a $US650 credit if they traded in an iPhone 6, 6S or high-end Android device, BTIG Research said.
Jefferies analysts characterised the latest round of offers as a "more rational" approach in a note on Wednesday, as last year's free iPhone deals weighed heavily on the carriers' margins.
Even with less generous promotions, the new iPhones should attract enough high-income consumers, including wealthy customers in China, said Brian White, analyst at Drexel Hamilton.
