Reports say the iPhone 8 has not been a hot seller and that puts more pressure on Apple to do better when the iPhone 10 goes on sale Friday.
This is not a typical situation, you see Apple split the launch dates of its three new iPhones and the iPhone 8 and 8 plus went on sale a month ago.
The big US mobile carriers reported weaker interest for the iPhone 8 but they also seem optimistic that there will be stronger demand for the ten when it hits stores November third.
Apple has not yet shared sales numbers but it may reveal more during a earnings conference call on Thursday November second.
There have been reports that there could be low supply of the iPhone 10 which has a whole new design and a facial recognition system to unlock the phone.
Bloomberg reported that Apple was willing to be less strict about the accuracy of its facial recognition system in order to get more phones made.
But Apple denies the report.
Saying the quality and accuracy of face ID have not changed.
I'm Bridget Carey, you can stay updated on the latest iPhone news at CNET.