The lead-times for the iPhone 5s, iPad Air and Retina Mini have all decreased which indicates that Apple's supply is catching up to demand.

iPhone 5S supply continues to try to catch up with demand. As of Monday, Apple's US online store lists an estimated wait time of three to five business days for all variations of the popular 5S ...

Apple's iPhone 5s' shipping period has dropped from over a week to just 3-5 days, according to Apple's US online store.