The device starts at $999 for a 64 GB phone or $1,149 for the 256 GB version. You can also purchase the phone through the company's upgrade program with 24 monthly payments of either $49.91 or $51.16, respectively.
"We can see from the initial response, customer demand is off the charts," an Apple spokesperson told Reuters.
The phone has been the subject of much chatter in recent weeks as rumors of supply chain concerns and production issues tied to the device's facial recognition technology have served to depress Apple's stock in the run-up to its release.
Within just hours of the commencement of pre-orders wait times to receive the phone have ballooned to five to six weeks, according to CNBC. Limited supply of the phone has also hit international markets with people in China reporting that the phone was sold out within 30 minutes.
Apple shares rose 3.58% Friday.
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