The iPhone 15 and five other takeaways from Apple's 'wonderlust' event

Apple unveiled its iPhone 15 lineup along with other, major updates during its September keynote event it called "wonderlust" Tuesday. l

The company confirmed rumors that it will switch to USB-C from its proprietary Lightning charging cable with the iPhone 15. Apple also announced its updated Appwle Watch Series 9 and Ultra 2 smartwatches, with new colors and features.

Although the annual iPhone event has become formulaic over the years - often with incremental changes to battery life, camera systems and displays - this year's USB-C announcement marks the biggest change to the iPhone's design in 11 years. The change could streamline the charging process across various devices and brands.

The charger update comes as Apple looks to give consumers more reasons to upgrade their iPhones. Last month, Apple's sales fell for the third consecutive quarter. iPhone revenue came in at $39.7 billion for the quarter, marking an approximately 2% year-over-year decline, as people update their devices less often. Apple on Tuesday said it will not raise prices for the iPhone 15 lineup, which could further incentivize users to upgrade. l

Here are the main takeaways from Apple's Tuesday event:

The company announced its next-generation entry-level iPhone 15s, which now feature an expanded "Dynamic Island" tool that is home to alerts, notifications and other controls, in place of the notch.

The feature was previously only available on the iPhone 14 Pro. The basic iPhone 15 phones include updated image stabilization for taking photos and videos, 2x optimization and updated portraits with richer color and better low-light performance. The Pro models feature even more advanced camera updates, including a more-advanced 48 megapixel main camera featuring a larger sensor than on iPhone 15.