While Apple is thought of as the first company to remove the 3.5mm headphone jack on its smartphones, the first handsets released sans the jack were actually the LeEco Le 2, Le 2Pro and Le Max2.
A Barclays analyst reckons Apple will not provide the headphone jack adapter with the 2018 iPhones. In the research note, Barclays analyst Blayne Curtis and his associates state "We now model no dongle this year", and Barclays has lowered its quarterly and yearly revenue guidance for Cirrus Logic - the supplier of audio component in the adapter - by up to five percent as a result.
Apple's "courageous" and controversial compromise of killing the headphone jack in the iPhone continues to create contempt among critics and fans for the past year and a half. Apple has been heavily pushing wireless audio since the iPhone 7, the first iPhone (although not the first smartphone) to kill off the 3.5mm audio jack.
For those resistant to the wireless audio revolution, the company bundled-in a free 3.5mm-to-Lightning adapter, enabling folks to continue using wired headphones at a minor inconvenience. In 2018, the analysts predict, Apple is removing it from the box. However, at launch, users wouldn't be able to listen to music and charge the iPhone at the same time, since they'd both use the same port. Apple's AirPods are also wireless. Last year, Barclays correctly predicted that Apple would include the accessory with the Apple iPhone 8, iPhone 8 Plus, and iPhone X. The adapter can still be purchased from Apple (or most retailers) for United States dollars $9, which says a lot about the production costs.