If you’ve just switched from Android to an iPhone, you can access your iPhone’s quick settings through what Apple calls Control Center. Control Center is where you’ll find all the direct toggles for turning Bluetooth, Wi-Fi, and mobile data on or off, as well as other controls like brightness, volume levels, flashlight, and more.
How to Customize Control Center on iPhone, iPad, and iPod touch — Apple Support
If you're new to iPhone or just getting started with iOS, the following post will teach you how to open Control Center, what actions you can perform with it, and how to add more tools to it.
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Depending on the type of iPhone you have, opening the Control Center may also change. Therefore, there are two ways to pull down the Control Center on iOS and here is how you can do it.